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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Circular and Spiral Slide Rules
Gilson / Midget Type I - Version 2
Gilson Slide Rule Co.
USA
Metal/paper
1916-1918
Ø 8.4 cm
General calculations
Notes:
An early model with two crowfoot metal cursors on the front. The steel backing disc on this type was replaced by aluminium for subsequent types and other models.
Image 1
Image 2
Image 3
Image 4
Image 5
