W. J. Young Surveyor's Vernier Compass

Description
The "Wm. J. Young Maker 3641 Philadelphia" signature indicates that this compass was made around 1859. The face is dark, and the needle ring is silvered. An outkeeper is on the face at west, and a circular level at east. The variation arc on the north arm extends 20 degrees either way, and reads by vernier to single minutes. The arms are unusually thick, making the compass unusually heavy. The box is marked "J. H. Marvin Lexington Ky."
Location
Currently not on view
Object Name
compass (surveyor's vernier)
maker
Young, William J.
Measurements
overall length: 16 in; 40.64 cm
needle: 6 in; 15.24 cm
place made
United States: Pennsylvania, Philadelphia
ID Number
2000.0241.01
accession number
2000.0241
catalog number
2000.0241.01
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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