Manufacturer: Aristo
Country of Manufacture: Germany
Type: Rietz 109
Number: 425
Date of Manufacture: 1942
Scales: (Front) cms/K, A [B, CI, C] D, L /ins
Scales: (Back) [S, ST, T]
Number of Scales: 10
Gauge Points: π,C, p", p', R, C1
Slide Rule made from: Plastic
Cursor made from: Plastic
Cursor Lines: 3
Overall Length of Rule: 54.4 cm
Length of Scales: 50.0 cm + 2.8 cm ext
Width: 4.1 cm
Depth: 0.7 cm
Acquired from: Gene Siburn
Date: April 2006
Condition: Good
 Cardboard Case. Poor condition.