Surveyor's Compass

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Description
This compass may date from the fourth quarter of the 18th century. Although the bar holding the vertical sights is straight and narrow, the face reads counterclockwise. The needle rim is graduated to single degrees, and numbered in quadrants from North and South.
Location
Currently not on view
Measurements
overall length: 16 in; 40.64 cm
needle: 5 1/2 in; 13.97 cm
overall: 7 5/8 in x 15 5/8 in x 6 1/2 in; 19.3675 cm x 39.6875 cm x 16.51 cm
ID Number
PH.337072
catalog number
337072
accession number
1980.0012
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Surveying and Geodesy
Data Source
National Museum of American History, Kenneth E. Behring Center

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