Text: "Calculimetre G. Charpentier Brevete (Patented) S.C.D.G.". small metal circular slide rule with arrow-like pointer on the front, brass ring engraved with one of the scales on front face which is otherwise silver (nickel).. Label with accession number affixed to back.
Date
ca. 1913
Manufacturer
Charpentier, G.
Place Manufactured
France
Dimensions
1/4 x 2 1/2 x 3 1/4 in.
Category
Pre-computer/slide rule
Subject
Hand calculation; Slide rule; Analog; Oughtred, William
