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Keuffel & Esser Instructions for 4098 Ever-There Slide Rule

Keuffel & Esser Instructions for 4098 Ever-There Slide Rule

Usage conditions apply
The citation information for this 16-page tissue paper pamphlet is: Instructions for Operating Ever-There Slide Rule No. 4098 (New York: Keuffel & Esser, 1932). The pamphlet describes an earlier version of 1989.0325.06. It lists various uses for slide rules and provides detailed drawings and explanations for reading numbers and making calculations on the slide rule. Sample problems are solved in multiplication and division, proportion, squares and square roots, cubes and cube roots, trigonometry, and logarithms.
Currently not on view
Object Name
date made
Keuffel & Esser Co.
place made
United States: New York, New York City
Physical Description
paper (overall material)
overall: 22.2 cm x 14.5 cm; 8 3/4 in x 5 23/32 in
ID Number
accession number
catalog number
Credit Line
Gift of William J. Ellenberger
Rule, Calculating
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Slide Rules
Data Source
National Museum of American History
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