Micrometer Eyepiece

Micrometer Eyepiece

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Description
This micrometer eyepiece is part of the transit instrument (aka meridian circle) that was made by William J. Young, in Philadelphia, and installed in the new observatory at Vassar College, in Poughkeepsie, New York, in 1865.
Location
Currently not on view
Object Name
micrometer, eyepiece
date made
1865
maker
Young, William
place made
United States: Pennsylvania, Philadelphia
Physical Description
brass (overall material)
Measurements
overall: 4 3/8 in x 2 7/8 in x 7 1/4 in; 11.1125 cm x 7.3025 cm x 18.415 cm
overall: 7 1/2 in x 2 1/2 in x 4 1/2 in; 19.05 cm x 6.35 cm x 11.43 cm
ID Number
1980.0318.01B
catalog number
1980.0318.01B
accession number
1980.0318
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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