This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
United States of America
INSTRUMENTS-Navigational
Sperti Inc.
Black metal device with glass backing and two lenses.
3-D (Overall): 22.2 × 31.7 × 12.7cm (8 3/4 in. × 1 ft. 1/2 in. × 5 in.)
HAZMAT: Cadmium
Non-Magnetic White Metal
Ferrous Alloy
Paint
Plastic
Glass
A19750220000
Gift of Kathleen L. Brooks
National Air and Space Museum
Usage conditions apply
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