Manufacturer: Gerber Scientific Instrument Company
Country of Manufacture: U.S.A.
Type: Analogue GA-3
Date of Manufacture: ~1953
Scales: (Front) R1, Rf, Rc,I, F, C0, T, T, S C0, D, ()2.()2, ()½, (), L10, LE, LE, P
Scales: (Back)  
Number of Scales: 18
Gauge Points:  
Slide Rule made from: Aluminium
Cursor made from:  
Cursor Lines:  
Overall Length of Rule: 36.0 cm
Length of Scales: 23.5 cm
Width: 13.0 cm
Depth: 1.0 cm
Acquired from: Kelly Wasik
Date: August 2015
Condition: Good
 Leather Case.  Good Condition
 A very significant development on the Gerber Variable Scale.