Pocket Compass

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This mahogany compass has an inset paper card with 32 points that was probably made for a nautical use. The outer edge of the card is graduated every degree, and numbered every 10 degrees in quadrants from north and south. Joseph McClellan (d. 1834), a captain in the Continental Army, is said to have carried it during the Revolutionary War.
Currently not on view
overall: 3 5/8 in x 3 5/8 in; 9.2329 cm x 9.2329 cm
overall: 2.4 cm x 9.3 cm x 9.3 cm; 15/16 in x 3 21/32 in x 3 21/32 in
overall: 15/16 in x 3 9/16 in x 3 5/8 in; 2.38125 cm x 9.04875 cm x 9.2075 cm
ID Number
accession number
catalog number
Credit Line
Alice M. S. and Dr. Henry C. J. Evans
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Medicine and Science: Physical Sciences
Measuring & Mapping
Surveying and Geodesy
Data Source
National Museum of American History


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