August Lingke Wye Level

This telescopic level has a horizontal circle that is silvered, graduated to 20 minutes, and read by opposite verniers with magnifiers to single minutes. Albert Joseph Seligman (1859-1935) probably bought it in the late 1870s, when he studied mining engineering at Freiberg. He probably donated it to the Rensselaer Polytechnic Institute, his alma mater, around 1899, when he obtained a seat on the New York Stock Exchange. A German silver tag on the box reads "Albert J. Seligman New York." The signature on the level reads "AUGUST LINGKE & CO FREIBERG IN SA NO 2000."
Currently not on view
Object Name
wye level
August Lingke & Co.
box: 11 in x 18 in x 9 1/16 in; 27.94 cm x 45.72 cm x 23.01875 cm
level: 8 in x 16 1/8 in x 6 in; 20.32 cm x 40.9575 cm x 15.24 cm
place made
Deutschland: Sachsen, Freiberg
ID Number
catalog number
accession number
serial 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

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