Phelps & Gurley Wye Level

This level is marked "Phelps & Gurley Troy, N.Y." It dates from the period 1845-1851 when Jonas Phelps and William Gurley were in business together.
Currently not on view
Object Name
level (wye)
Phelps & Gurley
overall: 8 1/2 in x 5 1/2 in x 16 1/2 in; 21.59 cm x 13.97 cm x 41.91 cm
telescope: 15 in; 38.1 cm
place made
United States: New York, Troy
ID Number
catalog number
accession number
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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