The Sum-Up Slide Rule, The New Amazing Slide Rule

The Sum-Up Slide Rule, The New Amazing Slide Rule

£90

Dimensions

Nine Inches

Circa

1939

Maker

Sum-Up Slide Rule Co.

Country of manufacture

North America

Categories: Scientific, Calculating

Description

“Your Calculations made a Pleasure Instead of a Headache”-Uncommon American Slide rule in good condition with original envelope and paper instruction sheet-adds,subtracts,converts fractions of an inch, decimals of an inch, millimeters. Made by the Sum-Up Slide Rule Co. New York.

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Dealer information

GB Fletcher

Fletcher Wallis

Fletcher Wallis sells objects and books relating to the history of science, medicine and technology Arcade. He publishes books through Vernier Press, including Antique Medicine Chests, and Corkscrew Patents from 1795. He has been dealing for forty eight years.

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