Geodetic Transit
name: label: maker
content: Troughton and Simms
notes: label: Description
content: This instrument, which the U. S. War Department transferred to the Smithsonian in 1933, was probably used by the Army Topographical Engineers.It is marked "Troughton & Simms, London 2" and was made perhaps as early as the 1840s. It has a double-cone horizontal axis, a lamp for illuminating this axis, a large striding level, a small vertical circle at one end of the horizontal axis, and an iron base.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, London
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Surveying and Geodesy
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content: Measuring & Mapping
creditLine: label: Credit Line
content: War Department
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.310559
label: accession number
content: 122836
label: catalog number
content: 310559
objectType: label: Object Name
content: geodetic transit
physicalDescription: label: Measurements
content: telescope: 31 in; 78.74 cm
label: Measurements
content: aperture: 2 3/8 in; 6.0325 cm
label: Measurements
content: striding level: 18 in; 45.72 cm
label: Measurements
content: vertical circle: 5 in; 12.7 cm