Sextant
date: label: date made
content: 1840s
name: label: maker
content: Gambey, Henri Prudence
notes: label: Description
content: Henri Prudence Gambey (1787-1847) was the foremost maker of precision instruments in France in the first half of the 19th century, and many American physicists and geodesists used instruments from his shop. This sextant belonged to the U.S. Coast Survey (the case is stamped "U.S.C.S. No. 61"). Its silvered scale is graduated every 10 minutes from -5° to +150° and read by vernier with tangent screw and magnifier to 10 seconds of arc. The inscription reads "Gambey à Paris."
label: Description
content: Ref: Deborah J. Warner, "Gambey’s American Customers," <i>Rittenhouse</i> 4 (1990): 65-78.
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: Navigation
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content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Coast & Geodetic Survey
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.309658
label: accession number
content: 106954
label: catalog number
content: 309658
objectType: label: Object Name
content: sextant
physicalDescription: label: Measurements
content: radius: 7 in; 17.78 cm