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National Air and Space Museum Collection
Circular wooden piece with a top-fitting brass plate or washer
with a center hole. There are various holes. Two are small and
shallow and located on the side. But there are four cut into
the top and sides which intersect in the middle. The plate is
held in place by screws.
Transferred from the Smithsonian Institution to the United States National Museum.
Country of Origin
United States of America
3-D: 3.8 x 5.4cm (1 1/2 x 2 1/8 in.)
Storage: 16.2 x 15.2 x 5.7cm (6 3/8 x 6 x 2 1/4 in.)
National Air and Space Museum
Restrictions & Rights
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