Name	Type	Photo	Match
Acu Math 1211	slide rule	P	3602
Acu Math 1211 Variant	slide rule	P	5773
Acu Math 1240	slide rule		3171
Acu Math 4	slide rule		3166
Acu Math 400	slide rule		5
Acu Math 400 B	slide rule		3168
Acu Math 500	slide rule		3601
Acu Math 511 Mannheim Professional	slide rule	P	3696
Acu Math 511 Mannheim Student	slide rule		3170
Acu Math 511 Mannheim Student Variant	slide rule	P	5298

Name	Type	Photo	Match
Acu Math 600	slide rule	P	5007
Acu Rule Co.	slide rule		3172
Acu Rule Co. 10	slide rule		3173
Acu Rule Co. 10 D	slide rule		3174
Addimult	slide rule	P	3897
Albd Calcurregla (Mexico)	slide rule	P	3951
Alco Personal Calculator with addiator Variant	slide rule		3177
Alro Prototype	slide rule	P	54
American Blueprint 2025 Mannheim polyphase	slide rule		3179
Apolda Mono Rietz Instruction rule	slide rule	P	3655

Name	Type	Photo	Match
Archimedes 10 C Escolar	slide rule		3921
Archimedes 11 C Universal	slide rule		3922
Aristo	slide rule		102
Aristo 0903 LL Scholar	slide rule	P	258
Aristo 0903 LL Scholar Variant	slide rule	P	256
Aristo 0903 Scholar (dummy)	slide rule		245
Aristo 0903 Scholar (dummy) Variant	slide rule		247
Aristo 0903 Scholar Variant	slide rule		241
Aristo 0903 Scholar Variant	slide rule		242
Aristo 0903 Scholar Variant	slide rule		243

Name	Type	Photo	Match
Aristo 0903 Scholar Variant	slide rule		244
Aristo 0903 Scholar Variant	slide rule		246
Aristo 0903 Scholar Variant	slide rule		248
Aristo 0903 Scholar Variant	slide rule		249
Aristo 0903 Scholar Variant	slide rule		250
Aristo 0903 Scholar Variant	slide rule		2886
Aristo 0903 VS - 2 Scholar	slide rule		287
Aristo 0903 VS - 2 Scholar Variant	slide rule		285
Aristo 0903 VS - 2 Scholar Variant	slide rule		286
Aristo 0903 VS - 2 Scholar Variant	slide rule		288

Name	Type	Photo	Match
Aristo 0903 VS Scholar	slide rule		283
Aristo 0903 VS Scholar Variant	slide rule		275
Aristo 0903 VS Scholar Variant	slide rule		276
Aristo 0903 VS Scholar Variant	slide rule		277
Aristo 0903 VS Scholar Variant	slide rule		278
Aristo 0903 VS Scholar Variant	slide rule		279
Aristo 0903 VS Scholar Variant	slide rule		280
Aristo 0903 VS Scholar Variant	slide rule		281
Aristo 0903 VS Scholar Variant	slide rule		282
Aristo 0903 VS Scholar Variant	slide rule		284

Name	Type	Photo	Match
Aristo 10175	slide rule	P	3534
Aristo 109 - 400g Rietz	slide rule		155
Aristo 109 Rietz	slide rule		151
Aristo 109 Rietz Variant	slide rule		152
Aristo 109 Rietz Variant	slide rule	P	153
Aristo 109 Rietz Variant	slide rule		154
Aristo 203 Scholar Rule for Projection	slide rule		157
Aristo 303 LL Scholar Instruction rule	slide rule		159
Aristo 303 LL Scholar Instruction rule Variant	slide rule		160
Aristo 303 Scholar Instruction rule	slide rule		158

Name	Type	Photo	Match
Aristo 3LL / 150 Scholar Instruction rule	slide rule		104
Aristo 3VS / 150 Scholar VS Instruction rule	slide rule		3441
Aristo 803 Scholar	slide rule	P	184
Aristo 803 Scholar Variant	slide rule	P	185
Aristo 810 Puck	slide rule		188
Aristo 810 Puck Variant	slide rule	P	187
Aristo 810 Puck Variant	slide rule	P	186
Aristo 811	slide rule	P	3658
Aristo 814 Elektro	slide rule		192
Aristo 814 Elektro (Ahrend 690/1) Variant	slide rule	P	3980

Name	Type	Photo	Match
Aristo 814 Elektro Variant	slide rule	P	193
Aristo 89 - 400g	slide rule		3105
Aristo 89 (NZ)	slide rule		106
Aristo 89 Rietz	slide rule		3145
Aristo 89 Rietz (Ahrend 690)	slide rule	P	114
Aristo 89 Rietz (Ahrend 690) Variant	slide rule	P	115
Aristo 89 Rietz (Ahrend 690) Variant	slide rule		116
Aristo 89 Rietz Variant	slide rule	P	108
Aristo 89 Rietz Variant	slide rule	P	109
Aristo 89 Rietz Variant	slide rule	P	110

Name	Type	Photo	Match
Aristo 89 Rietz Variant	slide rule		112
Aristo 89 Rietz Variant	slide rule	P	117
Aristo 89 Rietz Variant	slide rule	P	118
Aristo 89 Rietz Variant	slide rule		119
Aristo 89 Rietz Variant	slide rule	P	121
Aristo 89 Rietz Variant	slide rule	P	2840
Aristo 89 Rietz Variant	slide rule	P	2841
Aristo 89 Rietz Variant	slide rule		3141
Aristo 89 Rietz Variant	slide rule		3142
Aristo 89 Rietz Variant	slide rule		3143

Name	Type	Photo	Match
Aristo 89 Rietz Variant	slide rule		3144
Aristo 89 Rietz Variant	slide rule	P	107
Aristo 89 Rietz Variant	slide rule	P	122
Aristo 89 Rietz Variant	slide rule	P	123
Aristo 89 Rietz Variant	slide rule	P	124
Aristo 89 Rietz Variant	slide rule	P	125
Aristo 89 Rietz Variant	slide rule	P	126
Aristo 89 Rietz Variant	slide rule		128
Aristo 890 Rietz	slide rule	P	232
Aristo 890 Rietz Variant	slide rule		233

Name	Type	Photo	Match
Aristo 90184 Baustahlgewebe Bemessungsschieber. Variant	slide rule	P	3866
Aristo 903 Scholar	slide rule		3057
Aristo 914 Elektro Variant	slide rule		310
Aristo 914 Elektro Variant	slide rule	P	311
Aristo 92	slide rule	P	129
Aristo 99 - 400g Rietz	slide rule		142
Aristo 99 - 400g Rietz Variant	slide rule		143
Aristo 99 Rietz	slide rule	P	132
Aristo 99 Rietz (Ahrend 691)	slide rule		144
Aristo 99 Rietz (Ahrend 691) Variant	slide rule		145

Name	Type	Photo	Match
Aristo 99 Rietz (Ahrend 691) Variant	slide rule		2839
Aristo 99 Rietz Variant	slide rule		133
Aristo 99 Rietz Variant	slide rule		134
Aristo 99 Rietz Variant	slide rule		135
Aristo 99 Rietz Variant	slide rule		136
Aristo 99 Rietz Variant	slide rule		137
Aristo 99 Rietz Variant	slide rule		138
Aristo 99 Rietz Variant	slide rule		139
Aristo 99 Rietz Variant	slide rule		140
Aristo 99 Show model	slide rule		3008

Name	Type	Photo	Match
Aristo 99k Rietz	slide rule		146
Aristo D 967 Darmstadt	slide rule		347
Atlas 51	slide rule	P	3940
Azzola	slide rule		481
Beseler 7279 Projection	slide rule	P	5095
Blundell 300 Academy	slide rule	P	2922
Blundell 302 Log - log Academy	slide rule	P	531
Blundell 302 Log - log Academy Variant	slide rule	P	2966
Blundell 303 Rietz Academy	slide rule	P	532
Blundell 304 Darmstadt Academy	slide rule	P	2923

Name	Type	Photo	Match
Blundell 305 C Electro Academy	slide rule	P	533
Blundell 401 Rietz Omega	slide rule	P	2939
Blundell 402 Log - log Omega	slide rule	P	2940
Blundell 403 Darmstadt Omega	slide rule	P	2942
Blundell 404 Electro Omega	slide rule	P	2928
Blundell 406 Omega	slide rule		2931
Blundell 500 Academy	slide rule		2959
Blundell 502 Academy	slide rule		2960
Blundell 503 Commerce Academy	slide rule		2963
Blundell 503 D Commerce Academy Variant	slide rule	P	535

Name	Type	Photo	Match
Blundell 600 Mannheim	slide rule		2965
Blundell 601 Rietz Omega	slide rule	P	536
Blundell 602 Log - log Omega	slide rule		2941
Blundell 603 Darmstadt Omega	slide rule		2943
Blundell 604 Electro Omega	slide rule		2929
Blundell 606 Omega	slide rule		2932
Blundell 606 Omega	slide rule	P	3915
Blundell 803 Academy Variant	slide rule	P	3914
Blundell 803 P (Projection)	projection	P	539
Blundell 803 Rietz Academy	slide rule	P	538

Name	Type	Photo	Match
Blundell 803 Variant	slide rule	P	3912
Blundell 804 Academy	slide rule		2957
Blundell 805 Electrical Academy	slide rule		2958
Blundell 812 Classmate Academy	slide rule	P	540
Blundell 813 Classmate Academy	slide rule	P	541
Blundell 904 Academy	slide rule	P	542
Blundell 909	slide rule		3604
Blundell DM 5 Simplified Rietz Instruction rule	slide rule		2949
Blundell DM 6 Instruction rule	slide rule		2950
Blundell G 1 Students	slide rule	P	2951

Name	Type	Photo	Match
Blundell P 150	slide rule		3607
Blundell P 8	slide rule	P	519
Blundell Popular no. 1	slide rule	P	3155
Blundell S 143 - 10	slide rule	P	528
Blundell S 143 - 10 (Factory model)	plate	P	3163
Blundell S 143 - 20	slide rule	P	529
Blundell S 143 / 5 E	slide rule	P	2919
Blundell S 150 - 10	slide rule	P	495
Blundell S 150 - 10 P (Projection)	projection	P	2988
Blundell S 150 - 10 Staedtler	slide rule	P	3257

Name	Type	Photo	Match
Blundell S 150 - 20	slide rule	P	530
Blundell Students Model 1	slide rule		3415
Blundell Students Model 2	slide rule		3416
Blundell T 50 Janus Variant	slide rule	P	2944
Blundell T 51 Janus	slide rule		2946
Blundell TR 53 (Traction Engineers)	slide rule		2991
Blundell W.H. Smith Rietz	slide rule	P	507
Blundell W.H. Smith Simplified Rietz	slide rule	P	2911
"Boots Ringplan Standard 10"""	slide rule		3605
"Boots Ringplan Standard 5"""	slide rule	P	2814

Name	Type	Photo	Match
Briggs 33/57 Rietz	slide rule		3114
Bristol Line 18 - 4	slide rule		3606
Bruning 2401	slide rule	P	5777
Bruning 2401 Variant	slide rule	P	5032
Bruning 2420	slide rule	P	581
Cassani Marcantoni Milano 25 R	slide rule	P	592
Casu 23	slide rule		3042
Charvoz Roos SR 105 M	slide rule		3188
Classic Series IV	slide rule		602
Compass 505	slide rule	P	5091

Name	Type	Photo	Match
CThru 27	slide rule		3608
CThru 88	slide rule		3609
CThru Pocket Slide rule	slide rule		3196
CThru S 888	slide rule		674
Damien Maurice	slide rule	P	681
Damien Universal Ruler	slide rule	P	3953
Dargue Brothers Simplon Bilateral	slide rule		2361
Dargue Brothers Simplon Electro Log Log	slide rule		2358
Dargue Brothers Simplon Major Log Log	slide rule	P	2802
Dargue Brothers Simplon Primary Log Log	slide rule	P	3073

Name	Type	Photo	Match
Dargue Brothers Simplon Primary Log Log Variant	slide rule	P	3126
Dargue Brothers Simplon XL - 10	slide rule	P	2808
Dennert & Pape	slide rule	P	2687
Dennert & Pape 012b	slide rule		3199
Deuspa 523	slide rule		3003
Deuspa 525	slide rule	P	2857
Dietzgen	slide rule	P	729
Dietzgen	slide rule		731
Dietzgen 1739 L	slide rule		3201
Dietzgen 1745			3622

Name	Type	Photo	Match
Dietzgen 1750	slide rule		3204
Dietzgen 1757 Primatrig	slide rule		732
Dietzgen 1765 P	slide rule		3212
Dietzgen 1765 W			3624
Dietzgen 1767	slide rule		3213
Dietzgen 1767 P National	slide rule		733
Dietzgen 1767 P Variant	slide rule		3214
Dietzgen 1768	slide rule		3215
Dietzgen 1768 P Old model			3625
Dietzgen 1768 P Variant	slide rule	P	734

Name	Type	Photo	Match
Dietzgen 1771 Redirule	slide rule		735
Dietzgen 1771 Variant	slide rule		3216
Dietzgen 1772 A			3626
Dietzgen Clear Scale	slide rule	P	5503
Dietzgen Clear Scale Variant	slide rule	P	5504
Diwa (621) 601	slide rule	P	782
Diwa 1 - 1 Rietz Ideal	slide rule	P	742
Diwa 101 Log Log	slide rule		743
Diwa 101 Log Log Variant	slide rule	P	5738
Diwa 111 Electro	slide rule		744

Name	Type	Photo	Match
Diwa 111 Electro Variant	slide rule		745
Diwa 111 Electro Variant	slide rule	P	746
Diwa 201 Technical	slide rule	P	747
Diwa 201 Technical Variant	slide rule	P	753
Diwa 201 Technical Variant	slide rule		754
Diwa 201 Technical Variant	slide rule		755
Diwa 201 Technical Variant	slide rule		756
Diwa 201 Technical Variant	slide rule		748
Diwa 201 Technical Variant	slide rule	P	749
Diwa 201 Technical Variant	slide rule	P	750

Name	Type	Photo	Match
Diwa 201 Technical Variant	slide rule		751
Diwa 201 Technical Variant	slide rule	P	752
Diwa 301 Rietz	slide rule	P	758
Diwa 301 Rietz Variant	slide rule		759
Diwa 311 Electro	slide rule		760
Diwa 311 Electro Variant	slide rule	P	761
Diwa 351 Darmstadt Elegant	slide rule	P	762
Diwa 501 - 1 Rietz	slide rule	P	766
Diwa 501 - 1 Rietz Variant	slide rule		767
Diwa 501 Rietz Divinyl	slide rule	P	764

Name	Type	Photo	Match
Diwa 501 Rietz Variant	slide rule		765
Diwa 511 Electro	slide rule	P	768
Diwa 511 Electro Variant	slide rule		769
Diwa 511 Electro Variant	slide rule		770
Diwa 551 - 1 Darmstadt	slide rule		774
Diwa 551 - 1 Darmstadt Variant	slide rule	P	775
Diwa 551 Darmstadt	slide rule		773
Diwa 561 Log Log	slide rule		776
Diwa 601	slide rule	P	778
Diwa 601 - 1	slide rule		783

Name	Type	Photo	Match
Diwa 601 - 1 Variant	slide rule	P	784
Diwa 601 - 1 Variant	slide rule		785
Diwa 601 Variant	slide rule		779
Diwa 601 Variant	slide rule		780
Diwa 601 Variant	slide rule	P	3254
Diwa 605 - 2	slide rule		786
Diwa 611	slide rule		787
Diwa 621	slide rule	P	788
Diwa 621 Variant	slide rule		781
DIWA 631	slide rule	P	5737

Name	Type	Photo	Match
Diwa 661	slide rule	P	618
Diwa 701	slide rule	P	790
Diwa 701 Ideal Export	slide rule		793
Diwa 701 Variant	slide rule		791
Diwa 701 Variant	slide rule		792
Diwa 701 variant	slide rule	P	3282
Diwa 851 Darmstadt	slide rule		799
Diwa Rietz Ideal Instruction rule	slide rule		740
Diwa Rietz Instruction rule	slide rule		741
Du Mont 8-B	slide rule		806

Name	Type	Photo	Match
Du Mont polyphase type	slide rule		3220
Duval Regle Electro	slide rule		812
E. Tata	slide rule		3221
Ecobra 1450	slide rule	P	5759
Ecobra 1500	slide rule	P	3129
Ecobra R 141 Rietz	slide rule	P	814
Ecobra R 141 Rietz Variant	slide rule	P	815
Ecobra R 143 Rietz	slide rule	P	816
Ecobra R 151 Rietz	slide rule		817
Ecobra R 152 Perfect	slide rule	P	818

Name	Type	Photo	Match
Empire Pedigree	slide rule	P	5039
Empire Pencil Co	slide rule		3222
Empire Pencil Co Variant	slide rule		3223
Engineering Instruments Inc. 250 - V	slide rule		831
Engineering Mfg.	slide rule		3224
Faber Castell 1/38	slide rule	P	5756
Faber Castell 1/38 400g	slide rule	P	866
Faber Castell 1/54 Darmstadt	slide rule	P	879
Faber Castell 1/54 Darmstadt Variant	slide rule	P	868
Faber Castell 1/54 Darmstadt Variant	slide rule		869

Name	Type	Photo	Match
Faber Castell 1/54 Darmstadt Variant	slide rule	P	870
Faber Castell 1/54 Darmstadt Variant	slide rule		871
Faber Castell 1/54 Darmstadt Variant	slide rule		873
Faber Castell 1/54 Darmstadt Variant	slide rule	P	874
Faber Castell 1/54 Darmstadt Variant	slide rule	P	875
Faber Castell 1/54 Darmstadt Variant	slide rule	P	876
Faber Castell 1/54 Darmstadt Variant	slide rule	P	877
Faber Castell 1/54 Darmstadt Variant	slide rule	P	878
Faber Castell 1/54 Darmstadt Variant	slide rule		880
Faber Castell 1/54 Darmstadt Variant	slide rule		881

Name	Type	Photo	Match
Faber Castell 1/54 Darmstadt Variant	slide rule	P	882
Faber Castell 1/54 Darmstadt Variant	slide rule		3100
Faber Castell 1/54 m Darmstadt	slide rule		872
Faber Castell 1/54/A Darmstadt Addiator	rule/ addiator		883
Faber Castell 1/60	slide rule	P	884
Faber Castell 1/60 Variant	slide rule		885
Faber Castell 1/60 Variant	slide rule	P	886
Faber Castell 1/60/360 Variant	slide rule		1170
Faber Castell 1/60/360 Variant	slide rule	P	1171
Faber Castell 1/61/361	slide rule	P	1172

Name	Type	Photo	Match
Faber Castell 1/87 Rietz	slide rule	P	895
Faber Castell 1/87 Rietz Variant	slide rule		890
Faber Castell 1/87 Rietz Variant	slide rule		891
Faber Castell 1/87 Rietz Variant	slide rule		894
Faber Castell 1/87 Rietz Variant	slide rule	P	896
Faber Castell 1/87 Rietz Variant	slide rule		897
Faber Castell 1/87 Rietz Variant	slide rule		899
Faber Castell 1/87 Rietz Variant	slide rule		900
Faber Castell 1/87 Rietz Variant	slide rule	P	889
Faber Castell 1/87 Rietz Variant	slide rule	P	887

Name	Type	Photo	Match
Faber Castell 1/87 Rietz Variant	slide rule	P	888
Faber Castell 1/87 Rietz Variant	slide rule	P	2865
Faber Castell 1/87 Rietz Variant	slide rule	P	892
Faber Castell 1/87 Rietz Variant	slide rule	P	893
Faber Castell 1/87 Rietz Variant	slide rule	P	898
Faber Castell 1/87/387 Rietz	slide rule	P	1176
Faber Castell 1/87/387 Variant	slide rule		2694
Faber Castell 1/87/A Addiator	rule/ addiator		901
Faber Castell 1/87m	slide rule		902
Faber Castell 1/92	slide rule	P	1689

Name	Type	Photo	Match
Faber Castell 1/92/392	slide rule	P	1177
Faber Castell 1/98 Elektro	slide rule	P	910
Faber Castell 1/98 Elektro Variant	slide rule	P	904
Faber Castell 1/98 Elektro Variant	slide rule		905
Faber Castell 1/98 Elektro Variant	slide rule		906
Faber Castell 1/98 Elektro Variant	slide rule		907
Faber Castell 1/98 Elektro Variant	slide rule	P	909
Faber Castell 1/98 Elektro Variant	slide rule		911
Faber Castell 1/98 Elektro Variant	slide rule	P	912
Faber Castell 1/98 Elektro Variant	slide rule	P	3418

Name	Type	Photo	Match
Faber Castell 1/98 Elektro Variant	slide rule	P	908
Faber Castell 1/98/398 Elektro	slide rule	P	1179
Faber Castell 1/98/398 Elektro Variant	slide rule		1180
Faber Castell 1/98m Elektro	slide rule	P	913
Faber Castell 11/87	slide rule	P	3123
Faber Castell 11/87 K	slide rule	P	1003
Faber Castell 11/98 Electro	slide rule		3115
Faber Castell 111/38 Tachymeter 400g	slide rule	P	1131
Faber Castell 111/38 Tachymeter 400g Variant	slide rule		1132
Faber Castell 111/54 A Darmstadt Addiator	rule/ addiator		1137

Name	Type	Photo	Match
Faber Castell 111/54 Darmstadt Variant	slide rule		1134
Faber Castell 111/54 Darmstadt Variant	slide rule		1135
Faber Castell 111/54 Darmstadt Variant	slide rule	P	3466
Faber Castell 111/87 A Rietz Addiator	rule/ addiator	P	1143
Faber Castell 111/87 A Rietz Addiator Variant	rule/ addiator		1145
Faber Castell 111/87 A Rietz Addiator Variant	rule/ addiator	P	1144
Faber Castell 111/87 Rietz	slide rule	P	1141
Faber Castell 111/87 Rietz Variant	slide rule	P	1140
Faber Castell 111/87 Rietz Variant	slide rule	P	1142
Faber Castell 111/87 Rietz Variant	slide rule	P	2720

Name	Type	Photo	Match
Faber Castell 111/98 Elektro	slide rule	P	1147
Faber Castell 111/98 Elektro Variant	slide rule	P	1146
Faber Castell 111/98 Elektro Variant	slide rule		1148
Faber Castell 111/98 Elektro Variant	slide rule	P	1149
Faber Castell 1418 Wichmann	slide rule		2656
Faber Castell 152/82	slide rule		1153
Faber Castell 152/82 Variant	slide rule		1154
Faber Castell 157/87 Rietz	slide rule	P	1157
Faber Castell 157/87 Rietz Variant	slide rule		1158
Faber Castell 157/87 Rietz Variant	slide rule	P	2845

Name	Type	Photo	Match
Faber Castell 167/87 Rietz	slide rule	P	1163
Faber Castell 167/87 Rietz Variant	slide rule		1162
Faber Castell 31 C Klawun	slide rule		852
Faber Castell 310/87 Projection of 111/87	slide rule	P	3882
Faber Castell 315/87 Instruction rule	slide rule		1165
Faber Castell 334/87 Instruction rule	slide rule		1167
Faber Castell 387	slide rule	P	983
Faber Castell 387 Variant	slide rule		984
Faber Castell 392	slide rule	P	986
Faber Castell 398 Variant	slide rule	P	989

Name	Type	Photo	Match
Faber Castell 398 Variant	slide rule	P	990
Faber Castell 4/54 Darmstadt	slide rule	P	993
Faber Castell 4/54 Darmstadt Variant	slide rule		992
Faber Castell 4/54 Darmstadt Variant	slide rule		994
Faber Castell 4/54 Darmstadt Variant	slide rule		995
Faber Castell 4/54 Darmstadt Variant	slide rule	P	996
Faber Castell 4/87 Rietz	slide rule		997
Faber Castell 4/87 Rietz Variant	slide rule		998
Faber Castell 4/87 Rietz Variant	slide rule		999
Faber Castell 4/98 Elektro	slide rule	P	1000

Name	Type	Photo	Match
Faber Castell 4/98 Elektro Variant	slide rule	P	5649
Faber Castell 4/98 Elektro Variant	slide rule	P	5650
Faber Castell 44/87	slide rule		3227
Faber Castell 44/98 Elektro	slide rule		1008
Faber Castell 4477 Wichmann	slide rule	P	1007
Faber Castell 52/82 D-stab Variant	slide rule		1021
Faber Castell 52/82 D-stab Variant	slide rule	P	1024
Faber Castell 52/82 D-stab Variant	slide rule		1025
Faber Castell 52/82 D-stab Variant	slide rule	P	1026
Faber Castell 52/82 Schul-D-stab Variant	slide rule	P	1022

Name	Type	Photo	Match
Faber Castell 52/82 Schul-D-stab Variant	slide rule		1023
Faber Castell 52/82 Schul-D-stab Variant	slide rule		1027
Faber Castell 52/82 Schul-D-stab Variant	slide rule		1028
Faber Castell 57/74 System Schirdewan	slide rule		2713
Faber Castell 57/87 Schul Rietz	slide rule	P	1048
Faber Castell 57/87 Schul Rietz Variant	slide rule	P	1049
Faber Castell 57/87 Schul Rietz Variant	slide rule	P	1050
Faber Castell 57/87 Schul Rietz Variant	slide rule	P	1051
Faber Castell 57/87 Schul Rietz Variant	slide rule		1052
Faber Castell 57/87 Schul Rietz Variant	slide rule	P	1053

Name	Type	Photo	Match
Faber Castell 57/87 Schul Rietz Variant	slide rule	P	1054
Faber Castell 57/87 Schul Rietz Variant	slide rule		1055
Faber Castell 57/87 Schul Rietz Variant	slide rule		1056
Faber Castell 57/87 Schul Rietz Variant	slide rule		1057
Faber Castell 57/88 Rietz-N Variant	slide rule	P	1066
Faber Castell 57/88 Rietz-N Variant	slide rule		1067
Faber Castell 57/92	slide rule	P	1076
Faber Castell 6/54 Rb Darmstadt Addiator	rule/ addiator		5784
Faber Castell 61/87/397 Rietz	slide rule	P	1188
Faber Castell 63/87	slide rule	P	3255

Name	Type	Photo	Match
Faber Castell 67/21	slide rule		1091
Faber Castell 67/54 b Darmstadt	slide rule	P	1100
Faber Castell 67/54 b Darmstadt Variant	slide rule		1101
Faber Castell 67/54 b Darmstadt Variant	slide rule	P	1102
Faber Castell 67/54 b Darmstadt Variant	slide rule		1103
Faber Castell 67/54 b Darmstadt Variant	slide rule		1104
Faber Castell 67/54 Darmstadt	slide rule	P	1099
Faber Castell 67/54 R Darmstadt	slide rule	P	1105
Faber Castell 67/54 Rb Darmstadt Addiator	rule/ addiator	P	2817
Faber Castell 67/54 Rb Darmstadt Addiator	rule/ addiator	P	3131

Name	Type	Photo	Match
Faber Castell 67/56 b Schweisstechnik	slide rule	P	2793
Faber Castell 67/87 Rb Rietz Addiator	rule/ addiator	P	1106
Faber Castell 67/87 Rietz	slide rule	P	1108
Faber Castell 67/87 Rietz Variant	slide rule		1107
Faber Castell 67/87 Rietz Variant	slide rule	P	1109
Faber Castell 67/87 Rietz Variant	slide rule	P	1110
Faber Castell 67/87 Rietz Variant	slide rule		1111
Faber Castell 67/87 Rietz Variant	slide rule		1112
Faber Castell 67/87 Rietz Variant	slide rule		1113
Faber Castell 67/87 Rietz Variant	slide rule	P	1114

Name	Type	Photo	Match
Faber Castell 67/87 Rietz Variant	slide rule	P	1115
Faber Castell 67/87 Rietz Variant	slide rule	P	2847
Faber Castell 67/87 Rietz Variant	slide rule	P	2867
Faber Castell 67/98 b Elektro	slide rule	P	1120
Faber Castell 67/98 b Elektro Variant	slide rule		1121
Faber Castell 67/98 b Elektro Variant	slide rule	P	1122
Faber Castell 67/98 Elektro	slide rule		1119
Faber Castell 67/98 Rb Elektro Addiator	rule/ addiator		1123
FAo-LuM-HSB 300 Hono-Rietz	slide rule	P	1189
Festus Acu Rule	slide rule	P	1216

Name	Type	Photo	Match
Filotecnica No. 05 R	slide rule	P	5042
Fuji (534 S) Variant	slide rule		1246
Fuji 102 B	slide rule	P	1235
Fuji 104 B	slide rule	P	1236
Fuji 129 01 Student Log Variant	slide rule		1252
Fuji 129 01 Student Log	slide rule	P	1251
Fuji 129 Student Log	slide rule	P	1240
Fuji 208 Electro	slide rule		1242
Fuji 251 Rietz	slide rule	P	1243
Fuji 51	slide rule	P	3683

Name	Type	Photo	Match
Fuji 515 P Trilog	slide rule		1244
Fuji 534 S	slide rule	P	1245
Fuji 535 S	slide rule	P	1247
Fuji 536 C	slide rule	P	3438
Fullerton ACU 400	slide rule	P	3911
Gamma Budapest 1252	slide rule		1256
Gamma Budapest 1252 Variant	slide rule		1257
Gamma Budapest 2503	slide rule	P	1258
Graphoplex	slide rule	P	1288
Graphoplex 1612 Variant	slide rule		1338

Name	Type	Photo	Match
Graphoplex 610 Rietz	slide rule	P	1294
Graphoplex 612 Variant	slide rule	P	1296
Graphoplex 612 Variant	slide rule	P	1297
Graphoplex 612 Variant	slide rule		1299
Graphoplex 612 Variant	slide rule		1300
Graphoplex 615	slide rule	P	1301
Graphoplex 615 Texaco	slide rule		2738
Graphoplex 615 Variant	slide rule		2734
Graphoplex 620 a Rietz	slide rule		2737
Graphoplex 620 a Variant	slide rule		3043

Name	Type	Photo	Match
Graphoplex 620 d Rietz Variant	slide rule	P	1307
Graphoplex 620 Rietz Variant	slide rule	P	1304
Guedon Camden, New Yersey USA	slide rule		1352
HCW Leiden	slide rule		1369
Heath Hezzanith Carmody Navigational	slide rule		1371
Herion Werke	slide rule		1376
Hoffmann	slide rule		3238
Hono 300 S.R.E ELEKTRON 25 - No 670	slide rule	P	3831
Hope 51	slide rule	P	1381
Hope 53	slide rule	P	3437

Name	Type	Photo	Match
Hope 54	slide rule	P	2856
Hope 57	slide rule	P	1382
IWA 0272 Muiderkring	slide rule	P	1400
IWA 5125 Iwaflex	slide rule	P	1425
Jakar 1005	slide rule	P	1468
Jakar 22 Darmstadt	slide rule		1464
Jakar 511	slide rule	P	3892
Jakar 523 A	slide rule		1466
Jakar 523 A Variant	slide rule		1467
Kent	slide rule	P	1496

Name	Type	Photo	Match
Kent 7153	slide rule	P	1497
Kent 7153 LL	slide rule	P	1498
Kent 7153 LL Variant	slide rule	P	1499
Kent 7153 LL Variant	slide rule	P	1500
Kent 7300 LL	slide rule	P	1501
Kent 7300 LL Variant	slide rule	P	1502
Kent 7903 LL	slide rule	P	1503
Keuffel & Esser < 4053 - 3F > dated 1913	slide rule	P	4122
Keuffel & Esser < 4053 - 2 > Polyphase Mannheim Adjustable, dated 1914	slide rule	P	4525
Keuffel & Esser < 4053 - 2 > Polyphase Mannheim Adjustable, dated 1915 (other example)	slide rule	P	4751

Name	Type	Photo	Match
Keuffel & Esser < 4053 - 2 > Polyphase Mannheim Adjustable, dated 1915 (other example)	slide rule	P	4752
Keuffel & Esser < 4053 - 2 > Polyphase Mannheim Adjustable, dated 1915 and 1921	slide rule	P	4102
Keuffel & Esser < 4053 - 3 > Polyphase Mannheim Adjustable	slide rule	P	4107
Keuffel & Esser < 4053 - 3 > Polyphase Mannheim Adjustable	slide rule	P	4106
Keuffel & Esser < 4053 - 3 > Polyphase Mannheim Adjustable	slide rule	P	4498
Keuffel & Esser < 4053 - 3 > Variant	slide rule		1518
Keuffel & Esser < 4053 - 3F > Poly Keuffel & Esser 4053- 2S Mannheim Adjustable dated 1913 (other example) Magnifier	slide rule	P	4757
Keuffel & Esser < 4053 - 3F > Poly Mannheim Adjustable dated 1913 (other example) Variant. Magnifier	slide rule	P	4756
Keuffel & Esser < 4053 - 3F > Polyphase Mannheim (other example) Adjustable Magnifier	slide rule	P	4755
Keuffel & Esser < 4053 - 5 > Polyphase Mannheim Adjustable Dated 1914	slide rule	P	4527

Name	Type	Photo	Match
Keuffel & Esser < 4053 > Polyphase Slide Rule, Mannheim Adjustable	slide rule	P	4094
Keuffel & Esser < 4054 > Polyphase (Mannheim)	slide rule	P	4145
Keuffel & Esser < 4097 C > Ever - There, (Old 4098) Variant	slide rule	P	5049
Keuffel & Esser < 4097 C > Ever - There, 1936 (Old 4098)	slide rule	P	4373
Keuffel & Esser < 4097 C > Variant	slide rule	P	4762
Keuffel & Esser < 4138 > Morrison Radio Engineer's Slide Rule	slide rule	P	4427
Keuffel & Esser < 4138 > S Morrison Radio Engineer's Slide Rule			4428
Keuffel & Esser < N 4053 - 3 >	slide rule	P	4727
Keuffel & Esser < N 4053 - 3 > Polyphase Mannheim Adjustable	slide rule	P	4110
Keuffel & Esser < N 4053 - 3 > Polyphase Mannheim Adjustable	slide rule	P	4113

Name	Type	Photo	Match
Keuffel & Esser < N 4053 - 3 > S Polyphase Mannheim Adjustable	slide rule	P	4580
Keuffel & Esser < N 4053 - 3 > Variant	slide rule		1519
Keuffel & Esser < N 4053 - 3 > Variant	slide rule	P	4581
Keuffel & Esser < N 4053 - 3F > S Polyphase Mannheim Adjustable	disc(s)	P	4127
Keuffel & Esser < N 4053- 2 > Mannheim Adjustable, dated 1924 (other example)	slide rule	P	4754
Keuffel & Esser 100 Demonstration Slide Rule, Mannheim type, with two screw eyes for suspending			4116
Keuffel & Esser 4053 - 2 Polyphase Mannheim Adjustable			4101
Keuffel & Esser 4053 - 3 Polyphase Mannheim Adjustable			4108
Keuffel & Esser 4053 - 3 Polyphase Mannheim Adjustable	slide rule	P	4582
Keuffel & Esser 4053 - 3 Polyphase Mannheim Adjustable, molded plastic back	slide rule		4117

Name	Type	Photo	Match
Keuffel & Esser 4053 - 3F Polyphase Mannheim Adjustable, graduated as closely as the 50cm rule			4123
Keuffel & Esser 4053 - 3F Polyphase Mannheim Adjustable, graduated as closely as the 50cm rule			4124
Keuffel & Esser 4053 - 3FS Mannheim Adjustable, graduated as closely as the 50cm rule			4125
Keuffel & Esser 4053 - 3S Mannheim Adjustablese			4109
Keuffel & Esser 4053 - 3S Polyphase Mannheim Adjustable	slide rule	P	4583
Keuffel & Esser 4053 - 3S Polyphase Mannheim Adjustable,	slide rule	P	4118
Keuffel & Esser 4053 - 5 Polyphase Mannheim Adjustable			4130
Keuffel & Esser 4053 - 5 Polyphase Mannheim Adjustable			4131
Keuffel & Esser 4053 - 5 Polyphase Mannheim Adjustable	slide rule		4132
Keuffel & Esser 4053 - 5S Polyphase Mannheim Adjustable			4133

Name	Type	Photo	Match
Keuffel & Esser 4098 Ever - There, (Old 4098)			4377
Keuffel & Esser 4102 S Surveyor's Duplex			4402
Keuffel & Esser 4102 Surveyor's Duplex			4401
Keuffel & Esser 68 - 1617 Polyphase	slide rule	P	4119
Keuffel & Esser Mystery rule	slide rule	P	5812
Keuffel & Esser N < 4053 - 2 > S Polyphase Mannheim Adjustable, dated 1925	slide rule	P	4104
Keuffel & Esser N < 4053 - 3F > Mannheim Adjustable dated 1923	slide rule	P	4704
Keuffel & Esser N < 4053 - 3F > Polyphase Mannheim Adjustable, dated 1925, 1927, 1928, 1930	slide rule	P	4126
Keuffel & Esser N < 4053 - 3F > Polyphase Mannheim Adjustable, dated 1934			4507
Keuffel & Esser N < 4053 - 5 > Polyphase Mannheim Adjustable Dated 1923	slide rule	P	4686

Name	Type	Photo	Match
Keuffel & Esser N < 4053 - 5 > Polyphase Mannheim Adjustable Dated 1923	slide rule	P	4696
Keuffel & Esser N < 4053- 2 > Mannheim Adjustable, dated 1924	slide rule	P	4103
Keuffel & Esser N < 4053- 2 > Mannheim Adjustable, dated 1924 (other example)	slide rule	P	4753
Keuffel & Esser N < 4102 > Surveyor's Duplex	slide rule	P	4403
Keuffel & Esser N < 4123 > Roylance	slide rule	P	3640
Keuffel & Esser N 4053 - 2 S Polyphase Mannheim Adjustable			4105
Keuffel & Esser N 4053 - 3	slide rule	P	4726
Keuffel & Esser N 4053 - 3F Polyphase Mannheim Adjustable, dated 1936, 1937, 1939 and 1942			4128
Keuffel & Esser N 4053 - 3FS Polyphase Mannheim Adjustable			4129
Keuffel & Esser N 4053 - 3S Polyphase Manheim Adjustable			4111

Name	Type	Photo	Match
Keuffel & Esser N 4053 - 3S Polyphase Mannheim Adjustable			4114
Keuffel & Esser N 4053 - 3S Polyphase Mannheim Adjustable			4112
Keuffel & Esser N 4053 - 5 Polyphase Mannheim Adjustable			4134
Keuffel & Esser N 4053 - 5 Polyphase Mannheim Adjustable,			4136
Keuffel & Esser N 4053 - 5 Polyphase Mannheim Adjustable, with molded plastic back	slide rule	P	4138
Keuffel & Esser N 4053 - 5S Polyphase Mannheim Adjustable			4135
Keuffel & Esser N 4053 - 5S Polyphase Mannheim Adjustable			4137
Keuffel & Esser N 4053 - 5S Polyphase Mannheim Adjustable, with molded plastic back			4139
Keuffel & Esser N 4102 S Surveyor's Duplex			4404
Keuffel & Esser N 4102 S Surveyor's Duplex,			4406

Name	Type	Photo	Match
Keuffel & Esser N 4102 Surveyor's Duplex			4405
Keuffel & Esser N 4135 S Power Computing Rule			4425
Keuffel & Esser N 4135 S Power Computing Rule			4426
Kutsuwa FN 401	slide rule	P	1560
Kutsuwa Pocket FN 801	slide rule	P	1561
Kvama	slide rule		1562
Lawrence 011	slide rule	P	3863
Lawrence 10 - B	slide rule	P	1570
Lawrence 10 - B Variant	slide rule	P	1571
Lawrence 250 - BT	slide rule	P	1574

Name	Type	Photo	Match
Lawrence 250 - BT Engineering Instruments	slide rule		3296
Lawrence 250 - V Engineering Instruments	slide rule		3297
Lawrence 8 - B	slide rule	P	1569
Linex (1253) Variant	slide rule		1582
Linex 1253	slide rule	P	1580
Linex 1253 Variant	slide rule	P	1579
Linex 1253 Variant	slide rule	P	1581
Löbker Modell 75/2	slide rule		1583
Logarex 27103	slide rule	P	1604
Logarex 27204 - II Rietz	slide rule		1602

Name	Type	Photo	Match
Logarex 27205	slide rule		1607
Logarex 27251	slide rule	P	1614
Logarex 27402	slide rule	P	5744
Logarex 27403 II	slide rule		1609
Logarex 27403 III	slide rule	P	3300
Logarex 27602 II Exponent	slide rule	P	1611
Losztalyu Logar MSZ 4617 57	slide rule	P	1692
Lutz 102 S	slide rule	P	1694
Marc Minerva 6 A	slide rule		3002
Marcantoni 10 NB	slide rule	P	3837

Name	Type	Photo	Match
Marcantoni 12.5 RE	slide rule	P	1696
Markant 510	slide rule	P	3900
Markant 510 Variant	slide rule	P	3901
Meissner >> System Rietz <<	slide rule	P	1721
Meissner 75/2 b	slide rule	P	1714
Meissner VEB Galvanotechnik Leipzig	slide rule	P	3558
Meissner 1172 Schulrechner	slide rule	P	1715
Meissner DDR 1731421 > DARMSTADT RECORD <	slide rule	P	1716
Meissner Rietz	slide rule		1710
Minerva Rietz 106	slide rule		1727

Name	Type	Photo	Match
Nabla Estudio	slide rule		1736
Neolt 25 R Bergamo Italy Rietz	slide rule	P	3850
Nestler	slide rule	P	1748
Nestler 0121 Darmstadt	slide rule	P	1896
Nestler 0121 Darmstadt Variant	slide rule		1898
Nestler 0121 Darmstadt Variant	slide rule		1900
Nestler 0121 Darmstadt Variant	slide rule	P	1897
Nestler 0121 Darmstadt Variant	slide rule	P	1899
Nestler 0121 Darmstadt Variant	slide rule	P	1901
Nestler 0123 Rietz	slide rule	P	1904

Name	Type	Photo	Match
Nestler 0123 Rietz Variant	slide rule		1905
Nestler 0123 Rietz Variant	slide rule		1909
Nestler 0123 Rietz Variant	slide rule		1910
Nestler 0123 Rietz Variant	slide rule		1911
Nestler 0123 Rietz Variant	slide rule		1913
Nestler 0123 Rietz Variant	slide rule		1914
Nestler 0123 Rietz Variant	slide rule	P	1906
Nestler 0123 Rietz Variant	slide rule	P	1908
Nestler 0123 Rietz Variant	slide rule	P	1912
Nestler 0123 Rietz Variant	slide rule	P	2835

Name	Type	Photo	Match
Nestler 0123 Rietz Variant	slide rule	P	2836
Nestler 0123 Rietz Variant	slide rule	P	1907
Nestler 0127 International	slide rule	P	1915
Nestler 0127 International Variant	slide rule		1916
Nestler 0137 Elektro	slide rule	P	1922
Nestler 0137 Elektro. Variant	slide rule		1920
Nestler 0137 Elektro. Variant	slide rule		1921
Nestler 0137 Elektro. Variant. Front side only	slide rule	P	5484
Nestler 0201 Rietz Instruction rule	slide rule		1926
Nestler 0203 Alpha Instruction rule for 0251	slide rule	P	5493

Name	Type	Photo	Match
Nestler 0205 Darmstadt Instruction rule for Darmstad models. Front side only	slide rule	P	5491
Nestler 0206 Rietz Instruction rule for Rietz models. Front side only	slide rule	P	5492
Nestler 0208 Delta Instruction rule for 0252, 0253 and 0254. Front side only	slide rule	P	5489
Nestler 0210 Darmstadt	slide rule	P	1928
Nestler 0210 Darmstadt Variant	slide rule	P	1929
Nestler 0210 Darmstadt Variant	slide rule	P	1930
Nestler 0210 Darmstadt Variant	slide rule	P	1931
Nestler 0210 Darmstadt Variant	slide rule	P	5482
Nestler 0211 Darmstadt 400g	slide rule		1932
Nestler 0215	slide rule		1933

Name	Type	Photo	Match
Nestler 0215 Darmstadt	slide rule		5496
Nestler 0218 Darmstadt	slide rule	P	1935
Nestler 0218 Darmstadt Variant	slide rule		1934
Nestler 0218 Darmstadt Variant	slide rule		1936
Nestler 0218 Darmstadt Variant	slide rule	P	3288
Nestler 0232 Rietz	slide rule		1938
Nestler 0232 Rietz Variant	slide rule	P	1937
Nestler 0232 Rietz Variant	slide rule		1939
Nestler 0232 Rietz Variant	slide rule	P	5480
Nestler 0235 Rietz	slide rule	P	1940

Name	Type	Photo	Match
Nestler 0235 Rietz Variant	slide rule		1941
Nestler 0238 Rietz	slide rule	P	1942
Nestler 0238 Rietz Variant	slide rule		1943
Nestler 0238 Rietz Variant	slide rule	P	1944
Nestler 0238 Rietz Variant	slide rule	P	5479
Nestler 0239 Rietz	slide rule	P	1945
Nestler 0239 Rietz Variant	slide rule		1949
Nestler 0239 Rietz Variant	slide rule	P	1948
Nestler 0239 Rietz Variant	slide rule	P	1946
Nestler 0239 Rietz Variant	slide rule	P	1947

Name	Type	Photo	Match
Nestler 0251 Alpha	slide rule	P	1956
Nestler 0251 Alpha Variant	slide rule	P	1957
Nestler 0252 Beta	slide rule	P	1958
Nestler 0253 Gamma	slide rule	P	1959
Nestler 0254 Delta	slide rule		1960
Nestler 0254 Delta Variant	slide rule		1961
Nestler 0254 Delta Variant	slide rule	P	5498
Nestler 0370 Electro	slide rule	P	1974
Nestler 0370 Electro Variant	slide rule	P	1975
Nestler 0370 Electro Variant	slide rule	P	5485

Name	Type	Photo	Match
Nestler 0440 van Maarschalkerwaart Stahlbeton	slide rule	P	1986
Nestler 0440 van Maarschalkerwaart Stahlbeton Variant	slide rule	P	5478
Nestler 11 D	slide rule	P	1790
Nestler 11 E	slide rule		1791
Nestler 11 R	slide rule	P	3130
Nestler 11 R Variant	slide rule	P	1794
Nestler 11 R Variant	slide rule	P	1795
Nestler 11 ZE	slide rule	P	1796
Nestler 11 ZR	slide rule	P	1801
Nestler 11 ZR Variant	slide rule		1802

Name	Type	Photo	Match
Nestler 11 ZR Variant	slide rule	P	2838
Nestler 14 Variant	slide rule		1807
Nestler 1418 R III Wichmann	slide rule		2657
Nestler 21 a Darmstadt	slide rule	P	1817
Nestler 21 a Darmstadt Variant	slide rule		1816
Nestler 21 Darmstadt	slide rule		1812
Nestler 21 Darmstadt Variant	slide rule	P	1813
Nestler 21 Darmstadt Variant	slide rule		1814
Nestler 21 Darmstadt Variant	slide rule		1815
Nestler 21 Darmstadt Variant	slide rule		2695

Name	Type	Photo	Match
Nestler 21 Darmstadt Variant	slide rule	P	5442
Nestler 21/53	slide rule		1818
Nestler 21/53 Variant	slide rule		1819
Nestler 210 Darmstadt	slide rule		1927
Nestler 22	slide rule		1820
Nestler 22 E	slide rule		2688
Nestler 23 a Rietz	slide rule		1830
Nestler 23 a Rietz Variant	slide rule		2997
Nestler 23 E Rietz	slide rule		1831
Nestler 23 R Rietz	slide rule		1832

Name	Type	Photo	Match
Nestler 23 R Rietz Variant	slide rule	P	1833
Nestler 23 R Rietz Variant	slide rule		1834
Nestler 23 R Rietz Variant	slide rule		1835
Nestler 23 R Rietz Variant	slide rule		1836
Nestler 23 R Rietz Variant	slide rule		1837
Nestler 23 R Rietz Variant	slide rule		1838
Nestler 23 R Rietz Variant	slide rule		1839
Nestler 23 R Rietz Variant	slide rule		1840
Nestler 23 R Rietz Variant	slide rule		1841
Nestler 23 R Rietz Variant	slide rule		1842

Name	Type	Photo	Match
Nestler 23 R Rietz Variant	slide rule		1843
Nestler 23 R/3 Rietz	slide rule		1844
Nestler 23 R/3 Rietz Variant	slide rule		1845
Nestler 23 R/3 Rietz Variant	slide rule	P	1846
Nestler 23 R/3 Rietz Variant	slide rule		1847
Nestler 23 Rietz Variant	slide rule		1828
Nestler 23 Rietz Variant	slide rule		1829
Nestler 23 Rietz Variant	slide rule	P	2834
Nestler 23/52	slide rule	P	1848
Nestler 24 Rietz	slide rule	P	1849

Name	Type	Photo	Match
Nestler 24 Rietz Variant	slide rule		1850
Nestler 37 Electro Variant	slide rule		1872
Nestler 37 Electro Variant	slide rule	P	1870
Nestler 37 Electro Variant	slide rule	P	1871
Nestler 37 Electro Variant	slide rule	P	1873
Nestler 37 Electro Variant	slide rule	P	5540
Nestler 474 Wichmann	slide rule		2655
Nestler 9	slide rule	P	1781
Nestler 9 Variant	slide rule		1782
Nestler 9 Variant	slide rule		1783

Name	Type	Photo	Match
Nestler 9 Variant	slide rule		1784
Nestler Darmstadt	slide rule	P	2837
Nestler Elemath RS	slide rule		1766
Nestler Elemath RS Variant	slide rule		1767
Nestler Rietz	slide rule	P	1756
Nestler Rietz - S	slide rule	P	1773
Nestler Rietz - S Variant	slide rule		1774
Nestler Rietz - S Variant	slide rule	P	1775
Nestler S 0123 Rietz	slide rule		1903
Nestler Schul - Rietz	slide rule	P	1750

Name	Type	Photo	Match
NoName	slide rule		1999
NoName	slide rule		2000
NoName	slide rule		2001
NoName	slide rule		2002
NoName	slide rule		2014
NoName	slide rule		2016
NoName	slide rule		2022
NoName	slide rule		2027
NoName	slide rule		2034
NoName	slide rule		2035

Name	Type	Photo	Match
NoName	slide rule	P	3249
NoName	slide rule	P	1993
NoName	slide rule	P	1995
NoName	slide rule	P	1996
NoName	slide rule	P	1997
NoName	slide rule	P	1998
NoName	slide rule	P	2003
NoName	slide rule	P	2004
NoName	slide rule	P	2012
NoName	slide rule	P	2013

Name	Type	Photo	Match
NoName	slide rule	P	2015
NoName	slide rule	P	2019
NoName	slide rule	P	2020
NoName	slide rule	P	2021
NoName	slide rule	P	2023
NoName	slide rule	P	2024
NoName	slide rule	P	2031
NoName	slide rule	P	2033
NoName	slide rule		2005
NoName	slide rule		2011

Name	Type	Photo	Match
NoName	slide rule	P	2787
NoName	slide rule	P	2032
NoName	slide rule	P	2038
NoName Japanese	slide rule		2040
NoName Japanese	slide rule		2056
NoName S. 101	slide rule		2063
NoName Variant	slide rule	P	5653
Norden	slide rule		2083
Norden Darmstadt 2/48	slide rule		2084
Park Inst. Co. Compass	slide rule		2103

Name	Type	Photo	Match
Penol 1005A	slide rule	P	2107
Penol 102A	slide rule	P	2105
Penol 521A	slide rule	P	2106
Pickett 125	slide rule	P	2153
Pickett 160 Microline	slide rule		2157
Pickett 160 Microline Variant	slide rule		2156
Pickett 200	slide rule	P	3332
Pickett 80	slide rule	P	3325
Pickett 931ES	slide rule		3352
Pickett Model 61	slide rule		2133

Name	Type	Photo	Match
Pickett Model 62	slide rule	P	2779
Pickett N 200 T Trig	slide rule		2158
Pickett N 200 T Trig Variant	slide rule		2159
Pickett N 200 T Trig Variant	slide rule	P	5092
Pickett N 531 ES	slide rule	P	2171
Pickett N 531 ES Variant	slide rule		3336
Pickett N200ES	slide rule		3333
Pickett N901 - T Simplex Math Rule	slide rule	P	3346
Pickett N901 - T Simplex Math Rule Variant	slide rule	P	5072
Pickett N901ES	slide rule		3345

Name	Type	Photo	Match
Pickett projection ED26	slide rule	P	3324
Pilot 200 A	slide rule		2196
Plastograf Sao Paulo	slide rule	P	3919
Post 1410 Teledyne Post Simplex			3810
Post 1414 Teledyne Post Simplex			3811
Post 1438 Five-Inch Mannheim Multiphase			3707
Post 1441 Sun Hemmi	slide rule	P	2205
Post 1441 Sun Hemmi Variant	slide rule	P	2206
Post 1444 Sun Hemmi	slide rule	P	2208
Post 1444 Vest Pocket Extra Thin Mannheim			3727

Name	Type	Photo	Match
Post 1444D Commerce (Made in USA) Mannheim			3730
Post 1444D Commerce Variant: No brand name or model number, only Made in U.S.A. Mannheim			3731
Post 1444K Sun Hemmi	slide rule	P	2209
Post 1444K Vest Pocket Mannheim			3728
Post 1444K Vest Pocket Variant: Labeled Post 1444 but sold as Teledyne Post 1444K. Mannheim			3729
"Post 1444P Five-Inch Plastic Variant: No brand name or model number, not even ""Made in U.S.A."" Mannheim"			3733
Post 1444P Five-Inch Plastic. Frederick Post Made in U.S.A. Mannheim	slide rule	P	3732
Post 1446 Student Mannheim			3740
Post 1446D Student Mannheim			3739
Post 1446D Sun Hemmi	slide rule		3357

Name	Type	Photo	Match
Post 1447 Student Mannheim			3741
Post 1447 Student Mannheim			3746
Post 1447 Sun Hemmi	slide rule	P	2213
Post 1447 Sun Hemmi Variant	slide rule		2211
Post 1447 Sun Hemmi Variant	slide rule		2212
Post 1447D Student Mannheim			3745
Post 1447DP Projection			3747
Post 1447P Student Mannheim			3748
Post 1451 Universal (C Cursor) Mannheim			3759
Post 1452 Multiphase Mannheim			3761

Name	Type	Photo	Match
Post 1452 Plastic Variant: No make or model number, only Made in U.S.A. Mannheim			3768
Post 1452 Universal Mannheim	slide rule	P	3765
Post 1452 Universal Mannheim	slide rule	P	3762
Post 1452D Universal Mannheim			3766
Post 1452P Plastic Mannheim			3767
Post 1452T Extra Thin Universal Mannheim			3763
Post 1452W Universal Mannheim			3764
Post 1453 Universal Extra Fine Mannheim			3769
Post 1454 Multiphase Mannheim			3770
Post 1454 Universal (C Cursor) Mannheim	slide rule	P	3771

Name	Type	Photo	Match
Post 1456 Electrical Mannheim			3774
Post 1459 Sun Hemmi	slide rule		3359
Post 1459 Universal Log Log Duplex			3778
Post 1461 Universal Deluxe Duplex			3785
Post 44BA-470 Teledyne Post Mannheim			3814
Post 44BB-100 Simplex			3817
Post 44BB-140 Teledyne Post Simplex			3818
Post 44DA-440 Teledyne Post Mannheim			3825
Ramenskoe	slide rule		3362
Rapidus Rechenscieber	slide rule	P	3663

Name	Type	Photo	Match
Reed Service Electronic Engineers	slide rule	P	2232
Reiss 06/0015 Darmstadt	slide rule		2251
Reiss 3205 Electrical	slide rule	P	5086
Reiss 3209 C 7	slide rule	P	2250
Reiss 3212	slide rule		2247
Reiss 3214 Darmstadt Record	slide rule	P	3455
Reiss 37/350/1000 Rietz	slide rule		2252
Reiss 37/350/1000 Variant	slide rule	P	2253
Reiss 37/350/1000 Variant	slide rule	P	3452
Reiss Darmstadt	slide rule		2242

Name	Type	Photo	Match
Reiss DDR Darmstadt	slide rule	P	2238
Reiss Rietz	slide rule	P	2240
Reiss Rietz	slide rule		2241
Reiss Rietz DDR	slide rule		2236
Reiss Variant	slide rule	P	5752
Relay 105 CK 4	slide rule		2255
Relay 115	slide rule	P	3464
Relay 80 DK 1	slide rule	P	2254
Relay T 1031	slide rule		2259
Rheita	slide rule		2265

Name	Type	Photo	Match
RHEI-TA Rechenstabe	slide rule	P	1994
Richardson 1776	slide rule		2267
Richter Rietz 11	slide rule	P	3284
Ricoh 105	slide rule		2269
Ricoh 403	slide rule		2270
Rietz 79 465	slide rule	P	3283
Rista 1 Rietz	slide rule	P	2272
Rista 11 Rietz	slide rule	P	2277
Rista 2 Electro	slide rule	P	2273
Rista 2 Electro Variant	slide rule		2274

Name	Type	Photo	Match
Rista 22 Electro	slide rule		2278
Rista 3 Darmstadt	slide rule	P	2275
Rista 33 Darmstadt	slide rule		2279
Rista 33 Darmstadt Variant	slide rule		2280
Roos SR - 104 Company	slide rule	P	3864
Roos SR 107 A The Roos Company	slide rule		2285
Royal	slide rule		2289
Royal 1053	slide rule	P	2291
Royal 1053 Ecola Variant	slide rule	P	2292
Russian	slide rule	P	2304

Name	Type	Photo	Match
Russian Schetnykh Priborov 1969	slide rule		2303
Russian SP	slide rule		2302
Russian SP 250 10 1977	slide rule		2319
Russian 25.01.610-72	slide rule		2320
Russian Soiuz 1949	slide rule	P	3645
Russian GOST 5161 49 1953	slide rule	P	2300
Russian GOST 5161 49 1954	slide rule	P	3646
Russian GOST 5161 57 1961	slide rule	P	5087
Russian GOST 5161 57 1962	slide rule	P	2307
Russian GOST 5161 57 1963	slide rule	P	2308

Name	Type	Photo	Match
Russian GOST 5161 57 1964	slide rule	P	3136
Russian GOST 5161 57 1967	slide rule		2309
Russian GOST 5161 57 1967 Variant	slide rule	P	3134
Russian GOST 5161 57 1968	slide rule	P	2805
Russian GOST 5161 57 1969	slide rule	P	2310
Russian GOST 5161 57 1969	slide rule	P	3133
Russian GOST 5161 57 1973	slide rule	P	2778
Russian GOST 5161 57 1973 Variant	slide rule	P	3135
Russian GOST 5161 57 1972 Variant	slide rule		3588
Russian GOST 5161 57 1972	slide rule	P	3444

Name	Type	Photo	Match
Russian GOST 5161 72 1975	slide rule	P	2296
Russian GOST 5161 72 1976	slide rule		2312
Russian GOST 5161 72 1976 Variant	slide rule	P	2313
Russian GOST 5161 72 1978	slide rule	P	2314
Russian GOST 5161 72 1979 (PVC)	slide rule	P	2315
Russian GOST 5161 72 1979 (wood)	slide rule	P	3647
Russian GOST 5161 72 1986	slide rule	P	2318
Russian GOST 5161 72 1977	slide rule	P	505
Zavod "Soiuz" im. L. B. Krasina	slide rule		3364
Santok	slide rule		2328

Name	Type	Photo	Match
Santok	slide rule		2329
Scientific Instruments 1520	slide rule		3368
Scientific Instruments 4030	slide rule		3371
Sdelaho	slide rule		2340
Seger Zegerco	slide rule		2343
Shell Helix U 02	slide rule		1375
Simi Universal Darmstadt 154/47	slide rule		2357
Skala	slide rule		2364
Skala SLE	slide rule	P	1405
Staedtler 54103 Rietz	slide rule	P	2375

Name	Type	Photo	Match
Staedtler 54106 Electro	slide rule	P	2376
Staedtler 54106 Mars	slide rule	P	3665
Staedtler 544 LL	slide rule		2373
Staedtler 544 LL	slide rule	P	2773
Staedtler 544 S	slide rule	P	2374
Staedtler 54401 Darmstadt	slide rule	P	2377
Staedtler 54401 Darmstadt Variant	slide rule	P	2378
Staedtler 54401 Darmstadt Variant	slide rule	P	2379
Staedtler 54403 Rietz	slide rule	P	2380
Staedtler 54403 Rietz Variant	slide rule	P	2381

Name	Type	Photo	Match
Staedtler 54452 Noris Log Log	slide rule	P	2383
Staedtler 54452 Scolaria Log Variant	slide rule	P	2384
Staedtler 54455 Noris Rietz	slide rule		2385
Staedtler 54503 Rietz	slide rule	P	2386
Staedtler 94403	slide rule	P	3252
Sterling 587	slide rule	P	2388
Sterling 587 Variant	slide rule		3383
Sterling 689 Precision	slide rule		3380
Sterling Precision	slide rule	P	2391
Sterling Precision	slide rule	P	3938

Name	Type	Photo	Match
Sterling Precision (with cm and inch scale)	slide rule	P	3937
Sterling Precision Variant	slide rule	P	3381
Sun Hemmi	slide rule		2399
Sun Hemmi	slide rule	P	2400
Sun Hemmi 101 A Instruction rule	slide rule		2453
Sun Hemmi 101 Instruction rule	slide rule		2452
Sun Hemmi 130	slide rule	P	2455
Sun Hemmi 130 Variant	slide rule		2457
Sun Hemmi 130 Variant	slide rule	P	2454
Sun Hemmi 130 Variant	slide rule	P	2456

Name	Type	Photo	Match
Sun Hemmi 130 Variant	slide rule	P	2458
Sun Hemmi 135	slide rule		2462
Sun Hemmi 135 Ahrend	slide rule	P	2463
Sun Hemmi 135 Darmstadt Variant	slide rule	P	2464
Sun Hemmi 136 Darmstadt	slide rule		2465
Sun Hemmi 152	slide rule	P	5678
Sun Hemmi 153	slide rule	P	2467
Sun Hemmi 153 Variant	slide rule	P	5062
Sun Hemmi 30	slide rule	P	2397
Sun Hemmi 32	slide rule	P	3385

Name	Type	Photo	Match
Sun Hemmi 34 RK	slide rule	P	2412
Sun Hemmi 34 RK Variant	slide rule		2410
Sun Hemmi 34 RK Variant	slide rule		2411
Sun Hemmi 40 RK	slide rule	P	2414
Sun Hemmi 40 RK Ahrend	slide rule	P	2416
Sun Hemmi 40 RK Variant	slide rule		2417
Sun Hemmi 40 RK Variant	slide rule	P	2415
Sun Hemmi 50	slide rule		3387
Sun Hemmi 50 W	slide rule	P	2428
Sun Hemmi 64 Rietz	slide rule	P	2430

Name	Type	Photo	Match
Sun Hemmi 64 Rietz (Ahrend)	slide rule		2432
Sun Hemmi 64 Rietz (Ahrend) Variant	slide rule		2433
Sun Hemmi 64 Rietz Variant	slide rule		2434
Sun Hemmi 64 Rietz Variant	slide rule		2435
Sun Hemmi 64 Rietz Variant	slide rule	P	2431
Sun Hemmi 64 Rietz Variant	slide rule	P	2436
Sun Hemmi 64 Rietz Variant	slide rule	P	2437
Sun Hemmi 64 Rietz Variant	slide rule	P	2438
Sun Hemmi 66 Rietz	slide rule	P	2442
Sun Hemmi 66 Rietz Variant	slide rule	P	2443

Name	Type	Photo	Match
Sun Hemmi 74	slide rule	P	2444
Sun Hemmi 74 Variant	slide rule	P	2445
Sun Hemmi 74 Variant	slide rule	P	2854
Sun Hemmi 80 / 3 Electro	slide rule	P	2449
Sun Hemmi 80 / 3 Electro Variant	slide rule		2450
Sun Hemmi 80 K	slide rule	P	2446
Sun Hemmi 86 K	slide rule		2451
Sun Hemmi 86/3 K	"slide rule "	P	5684
Sun Hemmi Ahrend Instruction rule	slide rule		2408
Sun Hemmi HJ 80 K Variant	slide rule		2447

Name	Type	Photo	Match
Sun Hemmi P 280	slide rule	P	2477
Sun Hemmi P 280 Ahrend	slide rule	P	2476
Sun Hemmi P 280 Ahrend Variant	slide rule	P	2478
Sun Hemmi P 281	slide rule	P	2481
Sun Hemmi P 281 Ahrend	slide rule	P	2479
Sun Hemmi P 281 Ahrend Instruction rule	slide rule	P	2480
Sun Hemmi P 281 Ahrend Variant	slide rule	P	2482
Sun Hemmi P 33 / SS	slide rule		3102
Sun Hemmi P 33 S	slide rule		3096
Sun Hemmi P 40 RK	slide rule	P	2418

Name	Type	Photo	Match
Sun Hemmi P 43 S	slide rule		3104
Sun Hemmi The Hughes Owens Co. Limited No. 1766	slide rule	P	3251
Tavernier Gravet	slide rule	P	2497
Tavernier Gravet	slide rule		2498
Tavernier Gravet	slide rule	P	2029
Tavernier Gravet	slide rule		2499
Tecnostyl 40/R Rietz	slide rule	P	2506
Tecnostyl 41/D Variant	slide rule	P	2508
Tecnostyl 41/D Variant	slide rule		2509
Tecnostyl 41/E Electro	slide rule	P	2510

Name	Type	Photo	Match
Tecnostyl 41/R	slide rule	P	2511
Tecnostyl 41/R Variant	slide rule	P	2512
Tecnostyl 41/R Variant	slide rule	P	2513
Tecnostyl 41/R Variant	slide rule		2514
Tecnostyl ST 40	slide rule		2504
Tecnostyl ST 40 Variant	slide rule		2505
Tecnostyl ST 41	slide rule	P	2515
Tecnostyl ST 41 Variant	slide rule		2516
Teknor 525	slide rule		2521
Teknor 57 / K	slide rule		2520

Name	Type	Photo	Match
Thornton 3649	slide rule	P	3071
Thornton AD 050 Variant	slide rule		3393
Thornton AD 070 Modern Maths	slide rule	P	2536
Thornton AD 070 Modern Maths Variant	slide rule	P	2537
Thornton P 241 Log Log	slide rule	P	2553
Thornton PIC P 251 Standard	slide rule		2555
Unique 500	slide rule		3400
Unique Brighton	slide rule	P	2579
Unique Log Log Variant	slide rule	P	2586
Unique Log Log Variant	slide rule	P	2589

Name	Type	Photo	Match
Unique Polyphase	slide rule		3397
Unique Universal	slide rule	P	2594
Unique Universal I	slide rule		3399
Unique Universal One	slide rule	P	2593
Unique Universal Variant	slide rule	P	2595
Unis France	slide rule	P	2604
Unis France 6	slide rule	P	2610
Unis France 6 Variant	slide rule	P	2612
Unis France 6A	slide rule		2611
Universum HH	slide rule	P	2613

Name	Type	Photo	Match
USA	slide rule		2614
UTO 501U Rietz	slide rule		2616
UTO 503 Variant Incomplete print	slide rule	P	1511
UTO 511 U	slide rule	P	1515
UTO 511 U Variant	slide rule	P	1516
UTO 601	slide rule	P	2618
UTO 601 U	slide rule	P	2620
UTO 601 U	slide rule	P	1529
UTO 601 U Variant	slide rule		2621
UTO 601 U Variant	slide rule		2622

Name	Type	Photo	Match
UTO 601 U Variant	slide rule	P	2761
UTO 601 Variant	slide rule	P	2617
UTO 601 Variant	slide rule	P	2619
UTO 601 Variant	slide rule	P	274
UTO 602	slide rule	P	518
UTO 602 U Institut	slide rule	P	544
UTO 602 Variant	slide rule	P	549
UTO 603	slide rule	P	567
UTO 611 Richter Electro 22	slide rule	P	621
UTO 611 U	slide rule	P	622

Name	Type	Photo	Match
UTO 611 U	slide rule	P	633
UTO 651 (with cm scale)	slide rule	P	1060
UTO 651 U	slide rule		2624
UTO Cartesius Rietz Rietz Darmstadt Electro 1A	slide rule		2615
VEB Mantissa (DDR) Rietz 1731511	slide rule		2630
VEB Mantissa 1731523/4 (DDR) Darmstadt II	slide rule	P	2887
VEB Mantissa 1731523/4 (DDR) Darmstadt II Variant	slide rule		2632
VEB Mantissa 1731523/4 (DDR) Darmstadt II Variant	slide rule	P	2861
VEB Mantissa 1731523/4 (DDR) Darmstadt II Variant	slide rule	P	3540
VEB Mantissa 1731541 (DDR) Darmstadt II	slide rule	P	2633

Name	Type	Photo	Match
VEB Mantissa DDR >RECORD< 1731421	slide rule	P	3450
Weber	slide rule		3404
Weber 4285N	slide rule		2649
Wichmann 1918	slide rule		2658
Wolters Noordhoff 87 Rietz	slide rule	P	2667
Indal Stilus	slide rule	P	3894
Ricoh 505	Slide Rule	P	7027
Gamma 2512	Slide Rule	P	7040
Aristo 99	Slide Rule	P	7041
Diwa Rietz - Ideal n° 1-1	Slide Rule	P	7046

Name	Type	Photo	Match
Diwa 601	Slide Rule	P	7047
Faber Castell 11/60	Slide Rule	P	7049
Faber Castell 63/87	Slide Rule	P	7050
Ungarian STP 5161-57 (СТП СМХ 5161-57)	Slide Rule	P	7053
Sun Hemmi 130	Slide Rule	P	7054
Marcantoni 12.5 RB	Slide Rule	P	7056
Faber Castell 1/87/387 Rietz	Slide Rule	P	7062
Faber Castell 1/54 Darmstadt	Slide Rule	P	7063
Faber Castell 1/54 Darmstadt	Slide Rule	P	7064
Faber Castell 67/54 Darmstadt	Slide Rule	P	7070

Name	Type	Photo	Match
Marcantoni 12.5 RB	Slide Rule	P	7071
Nestler 21 Darmstadt	Slide Rule	P	7072
Nestler 21 Darmstadt	Slide Rule	P	7073
No name plastic	Slide Rule	P	7075
Sun Hemmi 34 RK	Slide Rule	P	7076
Aristo 80151	Slide Rule	P	7079
Aristo 0903 LL Scholar	Slide Rule	P	7089
Nestler 23 R/3 Rietz	Slide Rule	P	7094
Staedtler Mars 945 55	Slide Rule	P	7099
Aristo 902 Scholar	Slide Rule	P	7101

Name	Type	Photo	Match
Jakar 29 Student Log/Log	Slide Rule	P	7104
Logarex 27401-X Rietz (Koh-I-Noor)	Slide Rule	P	7105
Helix Top Precision A 102 S	Slide Rule	P	7107
Logarex 27403-X Darmstadt	Slide Rule	P	7108
Logarex 27402-X Elektro	Slide Rule	P	7109
Meissner KG Darmstadt	Slide Rule	P	7112
Meissner KG Mono Rietz	Slide Rule	P	7114
Meissner KG Rietz	Slide Rule	P	7115
Meissner 37/341/4043 Variant	Slide Rule	P	7116
Tecnostyl 40/R Variant	Slide Rule	P	7119

Name	Type	Photo	Match
Dietzgen 1765 P Variant	Slide Rule	P	7120
Reiss 2672 Rietz-Simplex	Slide Rule	P	7123
Reiss 3236 Darmstadt	Slide Rule	P	7124
Dietzgen 1767 National	Slide Rule	P	7125
Antica Fabbrica Vittorio Martini Elettro-25	Slide Rule	P	7127
Nestler 0232 Rietz	Slide Rule	P	7131
Marcantoni 10 NB	Slide Rule	P	7132
Nestler 0208 Delta	Slide Rule	P	7135
HONO RIETZ 12,5 - N* 661 EXTRA	Slide Rule	P	7136
HONO S.R.E. RIETZ 12,5 - N* 660	Slide Rule	P	7137

Name	Type	Photo	Match
Nestler Nr 35 Peter	Slide Rule	P	7139
Logarex 4542-27501	Slide Rule	P	7144

End of Search