This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
ca. 1918
United States of America
INSTRUMENTS-Flight Management
Precision Instrument Co.
135mm diameter, 60mm long; white figures on black; range 0 to 4 in.h2
3-D: 6 × 13.3 × 16.8cm (2 3/8 × 5 1/4 × 6 5/8 in.)
Aluminum
Copper Alloy
Glass
Coating
A19570336000
Transferred from the Department of Commerce
National Air and Space Museum
Usage conditions apply
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