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National Air and Space Museum Collection
A thick, circular block or wheel. The object is solid and can be stood on its sides. The center "rim" is complimented by an elevated 3.0" center on both side with a 3/4" center hole which extends through the object. A circular impression around the 3/4" center hole on one side indicates this object was held in place utilizing a washer or some support mechanism. The bottom circular area is 1.125" wide.
Transferred from the Smithsonian Institution to the United States National Museum.
Country of Origin
United States of America
Possible Iron Alloy
3-D: 8.6 × 14.6cm (3 3/8 × 5 3/4 in.)
Storage: 22.5 × 19.4 × 12.1cm (8 7/8 × 7 5/8 × 4 3/4 in.)
National Air and Space Museum
Restrictions & Rights
Usage conditions apply