Artifact Details

Title

Gilson circular slide rule

Catalog Number

X131.82

Type

Physical object

Date

ca 1940

Manufacturer

Gilson Slide Rule Company

Place Manufactured

Niles, Michigan, U.S.

Dimensions

overall: 1/2 in x 3 1/2 in x 3 1/2 in

Description

Circular slide rule with logarithmic scale, sin and tan scale, and fraction scale on the front. The back is divided into quadrants, each inscribed with the sign to be applied to a trigonometric function whose angle happens to be in that quadrant.

Category

Pre-computer: slide rule

Credit

Gift of Stanton Vanderbilt

Lot Number

X131.82
 

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