Manufacturer: Aristo
Country of Manufacture: Germany
Type: 0958 Geodat 360o
Number: 641
Date of Manufacture: 1964
Scales: (Front) T1, T2, arc, DF [CF, CIF, CI, C] D, P, S, C
Scales: (Back) 1-cos, 1-cos, A [ B,1/tan(a/2), sincos, cos2 ] D, L, K
Number of Scales: 22
Gauge Points: π, p'', p'
Slide Rule made from: Plastic
Cursor made from: Plastic
Cursor Lines: 2 front, 3 back (including ER)
Overall Length of Rule: 33.7 cm
Length of Scales: 25 cm + 2.7 cm extension
Width: 4.8 cm
Depth: 0.5 cm
Weight: 126 gms
Acquired from: Peter Holland
Date: Aug 2001
Condition: Good
 Instruction (German). Condition good
 Plastic case.  Condition good
 Data sheet.  Condition good