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
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.
Ask the Dealer
Dealer information
Fletcher
Fletcher Wallis
Fletcher Wallis sells objects and books relating to the history of science, medicine and technology from his unit at Admiral Vernon Arcade Portobello Road. He publishes books through Vernier Press, including Antique Medicine Chests, and Corkscrew Patents from 1795. He has been dealing for thirty five years.
