Instruction Manual for Cooper 100-Inch Slide Rule

This undated 16-page booklet was received with MA*326237. It is titled, The 'Cooper' 100-inch Slide Rule (Patented). Designed for Use in Calculations Involving Multiplication, Division, Proportion, Percentages, Powers, Roots, Logarithms, etc. etc. The description of the calculator claims it reads to four decimal places. Instructions for currency conversion are also provided. Partial tables of decimal equivalents appear as an advertisement for The Instanter Decimal Tables, published by Simpkin, Marshall, Hamilton, Kent & Co. of London.
Currently not on view
Object Name
date made
before 1923
Physical Description
paper (overall material)
overall: 12.4 cm x 18.4 cm; 4 7/8 in x 7 1/4 in
place made
United Kingdom: England, London
ID Number
accession number
catalog number
Science & Mathematics
Rule, Calculating
Slide Rules
See more items in
Medicine and Science: Mathematics
Slide Rules
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of William Dubilier

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