Vertical Circle
date: label: date made
content: 1840s
name: label: maker
content: Gambey, Henri Prudence
notes: label: Description
content: This vertical circle with a "Gambey à Paris" inscription is one of several instruments that the U. S. Coast Survey acquired from H. P. Gambey in Paris in the mid-1840s. It is heavy, stable, and precise. The circle itself is silvered, graduated to 5 minutes, and read by four verniers and magnifiers. The "U.S.C.&G.S. NO 37" inscription would have been added after 1878, when the Coast Survey became the Coast and Geodetic Survey.
label: Location
content: Currently not on view
place: label: place made
content: France: Île-de-France, Paris
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
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.307208
label: accession number
content: 65983
label: catalog number
content: 307208
objectType: label: Object Name
content: Vertical Circle
physicalDescription: label: Measurements
content: telescope aperture: 2 in; 5.08 cm
label: Measurements
content: telesope: 19 in; 48.26 cm
label: Measurements
content: vertical circle: 12 in; 30.48 cm
label: Measurements
content: overall: 21 3/4 in x 16 5/8 in x 13 1/2 in; 55.245 cm x 42.2275 cm x 34.29 cm