Aneroid Barometer
date: label: date made
content: 1860-1923
name: label: maker
content: Naudet & Cie.
notes: label: Description
content: The face of this cylindrical instrument is marked “BAROMETRE HOLOSTERIQUE / COMPENSÉ / NAUDET & CIE. / PARIS / SERVICE MÉTÉOROLOGIQUE.” The additional circle with the letters “HBPN” was the logo of Naudet & Cie., and probably represents the words: Holosteric Barometer Paul Naudet. The firm was founded in Paris in 1860 by Paul Naudet, and used the term Holosteric to mean “without liquid.” The scale around the edge of the silvered metallic dial extends from 65 to 80 millimeters of mercury and is graduated to tenths. A blued needle indicates the present pressure; a brass needle indicates a previous observation. The U.S. Signal Corps transferred this instrument to the Smithsonian in 1923.
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: Barometers
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content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Signal Corps
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.308186
label: accession number
content: 70852
label: catalog number
content: 308186
objectType: label: Object Name
content: Aneroid Barometer
physicalDescription: label: Measurements
content: overall: 4 3/4 in; 12.065 cm
label: Measurements
content: overall: 6 in x 2 1/8 in x 4 7/8 in; 15.24 cm x 5.3975 cm x 12.3825 cm