Stackpole & Brother Transit

This is marked "Stackpole & Brother New York 1748" and was probably made in the mid-1870s. The horizontal circle is silvered, graduated to 20 minutes of arc, and read by opposite verniers to single minutes. There is a hanging level, and a clamp and tangent screw on the horizontal axis.
Currently not on view
Object Name
Stackpole and Brother
overall: 12 in; 30.48 cm
horizontal circle: 6 in; 15.24 cm
needle: 4 1/2 in; 11.43 cm
telescope: 10 1/4 in; 26.035 cm
hanging level: 6 in; 15.24 cm
place made
United States: New York, New York
ID Number
maker number
catalog number
accession number
Measuring & Mapping
Surveying and Geodesy
See more items in
Medicine and Science: Physical Sciences
Surveying and Geodesy
Data Source
National Museum of American History, Kenneth E. Behring Center
Additional Media

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