Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Display Status

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 A two tiered knob with a black, round top and brown base which appears to have been broken off an object. The types of objects that this knob could have from are example with cataloged objects such as A19820953000 thru A19820957000. Stored with A19820909000 and A19820932000 Dimensions 3-D: 8.3 x 7.9cm (3 1/4 x 3 1/8 in.)
Storage: 27.62 x 27.31 x 10.8cm (10 7/8in. x 10 3/4in. x 4 1/4in.)
 Materials Wood
Iron Alloy
Paint
 Inventory Number A19820935000 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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