Manufacturer: Graphoplex
Country of Manufacture: France
Type: 690a
Date of Manufacture: 1971+
Scales: (Front) LL01, LL02, LL03, DF [CF, CIF, K, CI, C] D, LL3, LL2, LL1
Scales: (Back) LL00, L, T2, A [B, T1, SRT, S, C] D, P, DI, LL0
Number of Scales: 26
Gauge Points: π,e, R
Slide Rule made from: Plastic
Cursor made from: Plastic slightly magnifying
Cursor Lines: 4 front, 5 back
Overall Length of Rule: 33.8 cm
Length of Scales: 25.0 cm + 2.7 cm extension
Width: 4.9 cm
Depth: 0.4 cm
Acquired from: Etienne Pommel
Date: Sep 2005
Condition: Good
 Plastic case. Good condition
 Instructions (French) Good condition