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
Restrictions & Rights
Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum
Gift of the Sperry Gyroscope Company
- Natural Fabric
- Copper Alloy
3-D: 8.6 x 7.3 x 13cm (3 3/8 x 2 7/8 x 5 1/8 in.)
Country of Origin
United States of America
World War I era mechanical counter constructed of black metal, wood, and fabric.