Manufacturer: J.R.Dempster
Country of Manufacture: U.S.A.
Type: RotaRule
Number: AA
Date of Manufacture:  
Scales: (Front) K, A, D [C, CI, CIF, S, C, ST, T, CT, G (2 scales), B, F/i]
Scales: (Back) L, LL%, LL1, LL2, LL3, C [V1, V2, DLL, D]
Number of Scales: 25
Gauge Points: π, q, n"
Slide Rule made from: Plastic
Cursor made from: Plastic
Cursor Lines: 1 front, 1 back
Overall Length of Rule: Diameter 13.0 cm
Length of Scales: "50 ins"
Depth: 0.4 cm
Acquired from: Daryl Wright
Date: Sep 2003
Condition: Good
 Leather sheath