This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
National Air and Space Museum
Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum
Found in collection. Donor unknown at this time. Found on NASM premises.
3-D: 6.8 × 7.8 × 3.5cm (2 11/16 × 3 1/16 × 1 3/8 in.)
Country of Origin
United States of America
Black metal case with glass face cover Range 0-50.