Keith's Odometer

Keith's Odometer

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Established in 1879, the U.S. Geological Survey tested distance measurers to see which best suited their purposes. Those that failed muster were sent to the Smithsonian in 1907. This example—said to be a Keith odometer that counted revolutions of a wagon wheel—is one of those instruments.
Currently not on view
Object Name
date made
late nineteenth century
overall: 2.2 cm x 15.4 cm x 11 cm; 7/8 in x 6 1/16 in x 4 5/16 in
overall: 6 1/16 in x 4 1/8 in x 7/8 in; 15.39875 cm x 10.4775 cm x 2.2225 cm
ID Number
catalog number
accession number
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Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History
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