Theodolite
date: label: date made
content: late 1870s
name: label: maker
content: August Lingke & Co.
notes: label: Description
content: This is a German theodolite, quite unlike those made in England or the United States. Albert Joseph Seligman (1859-1935) probably bought it in the late 1870s, when he studied mining engineering at Freiberg, and 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.
label: Description
content: The horizontal circle is beveled, silvered, graduated to 20 minutes, and read by opposite verniers to single minutes. The vertical circle is silvered, graduated to 20 minutes, and read by opposite verniers to single minutes. The inscription reads "AUGUST LINGKE & CO FREIBERG IN SA NO 4265."
label: Location
content: Currently not on view
place: label: place made
content: Germany: Saxony, Freiberg
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Surveying and Geodesy
label: See more items in
content: Measuring & Mapping
creditLine: label: Credit Line
content: Gift of Rensselaer Polytechnic Institute
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2001.0300.02.02
label: catalog number
content: 2001.0300.02.02
label: accession number
content: 2001.0300
objectType: label: Object Name
content: theodolite
physicalDescription: label: Measurements
content: overall: 5 7/8 in x 4 in x 8 1/8 in; 14.9225 cm x 10.16 cm x 20.6375 cm
label: Measurements
content: horizontal circle: 11 1/2 in; 29.21 cm
label: Measurements
content: vertical circle: 8 1/2 in; 21.59 cm
label: Measurements
content: telescope: 20 1/2 in; 52.07 cm
label: Measurements
content: striding level: 8 1/2 in; 21.59 cm
label: Measurements
content: overall: 5 5/8 in x 4 in x 8 1/8 in; 14.2875 cm x 10.16 cm x 20.6375 cm