This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date
1887-1903
Country of Origin
United States of America
Type
EQUIPMENT-Test
Manufacturer
Smithsonian Institution Physical Description
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.
Dimensions
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.) Materials
Wood
Iron Alloy
Copper Alloy Inventory Number
A19820831000
Credit Line
Transferred from the Smithsonian Institution to the United States National Museum.
Data Source
National Air and Space Museum
Restrictions & Rights
Usage conditions apply
For more information, visit the Smithsonians Terms of Use.