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Computer, Line of Position, Bygrave's Slide Rule

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This object is on display in the Time and Navigation exhibition at the National Mall building.


Transferred from the Department of Commerce, Bureau of Standards

Manufacturer: Air Ministry Laboratory

Date: ca. 1920

Country of Origin: United Kingdom

Dimensions: 3-D (Steel Tube): 23.2 x 7.3cm (9 1/8 x 2 7/8 in.)

Materials: steel, brass, plastic, paper

Physical Description:60mm diameter, 235mm long; telescoping slide rule; ca.1920; cardboard.

Inventory number: A19570955000

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