Manufacturer: Aristo
Country of Manufacture: Germany
Type: Oil Rule 40126
Date of Manufacture: ~ 1969
Scales: (Front) 3 specialised, A [B, CI, C] D, 3 specialised
Scales: (Back) [ 4 specialised]
Number of Scales: 15
Gauge Points: π, C, C1
Slide Rule made from: Plastic
Cursor made from: Plastic, slightly magnifying
Cursor Lines: 1
Overall Length of Rule: 30.0 cm
Length of Scales: 24.9 cm + 2.3 cm extension
Width: 4.4 cm
Depth: 0.2 cm
Acquired from: Harald Schmitz
Date: March 2007
Condition: Good
 Leather sheath. Good condition.