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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 This object appears as a single unit. It has a flat, squared base a 1.5" high, 2 1/8" wid, rounded center piece. A single hole traverses the center. However, the center piece can be removed. The bottom of the removable center piece and the top of the base on which it stands has not been painted brown with wood finish. There is no evidence that these two peices were glued. Further, the base piece, when turned over, reveals writing which seems to state: "2 of this". Dimensions 3-D: 12.5 x 12.5 x 5.9cm (4 15/16 x 4 15/16 x 2 5/16 in.)
Storage: 26.04 x 17.78 x 5.4cm (10 1/4in. x 7in. x 2 1/8in.)
 Materials Wood
Varnish
Non-Magnetic Metal
 Inventory Number A19820947000 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
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