This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
1919
United States of America
INSTRUMENTS-Computers, General Purpose
19.8cm diameter; aluminum with compass points; top disc black / red line.
3-D: 20.2 × 19.5 × 1.9cm (7 15/16 × 7 11/16 × 3/4 in.)
Plastic
Non-Magnetic Metal Alloy
Paint
Wax Pencil
A19570957000
Transferred from the Department of Commerce
National Air and Space Museum
Usage conditions apply
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