Manufacturer: Aristo
Country of Manufacture: Germany
Type: 99
Date of Manufacture:  
Scales: (Front) cms/ K, A [B, CI, C] D, L
Scales: (Back) cms/ [ S, ST, T] /ins
Number of Scales: 10
Gauge Points: π, C, p", p', C1, R, M
Slide Rule made from: Plastic
Cursor made from: Plastic
Cursor Lines: 3
Overall Length of Rule: 30.0 cms
Length of Scales: 25.0 + 2.7 cms extension
Width: 4.1 cms
Depth: 0.6 cms
Acquired from: Wilma Schumann
Date: October 2005
Condition: Good
 Cardboard case. Medium condition.