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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Long and Long Scale Slide Rules
Gravet-Lenoir / Mannheim
Gravet-Lenoir
France
Wood
1851-1867
40 cm
General Calculations
Notes:
Made by the original manufacturer of the Mannheim type slide rule. The layout and nature of the scales on the back of the slide are unusual. The brass chisel-style cursor is missing.
Image 1
Image 2
Image 3
Image 4
Image 5
