| Name | Type | Photo | Match |
|---|
| Keuffel & Esser 4094 Merchants' (Mannheim) | | | 4342 |
| Keuffel & Esser 4094 Merchants' (Mannheim), | | | 4343 |
| Keuffel & Esser 4097 Ever - There | | | 4371 |
| Keuffel & Esser 4168 Doric Plastic Slide Rule with trig scales in degrees and minutes. Replaced 1068 | | | 4476 |
| Keuffel & Esser 68 - 1749 Desk Slide Rule, on Metal Stands, with , Knob on slide | | | 4369 |
| Keuffel & Esser 68 -1786 Merchants' Pocket | | | 4352 |
| Keuffel & Esser 68 -1791 Merchants' Pocket | | | 4353 |
| "Keuffel & Esser 9050 - 1 Merchants' Pocket - ""Doric""" | | | 4351 |
| Keuffel & Esser 9068 Doric Plastic Slide Rule with trig scales in degrees and minutes. Replaced by 4168 in 1952 | | | 4477 |
| Keuffel & Esser N 4094 Merchants' Slide Rule | | | 4344 |