Aneroid Barometer
date: label: date made
content: 1860s
notes: label: Description
content: Small aneroid barometer in a silvered case, 1¼ inches diameter, and ⅞ inches deep. The circumference of the face is marked “SEMMONS OCULIST OPTICIAN, 687 BROADWAY, NEW YORK” and “S. M. R. R. C. F. S. F. V. D.” The altitude scale reads from –1,000 to +12,000 feet, in increments of 100 feet. The pressure scale reads from 19 to 31 inches of mercury, in fifths of an inch. There is a leather case that also holds a mercury thermometer and a magnifying lens.
label: Description
content: Semmons began in business in New York in 1859, selling optical and other instruments imported from Europe. The U.S. Weather Bureau transferred this instrument to the Smithsonian in 1954.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
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content: Barometers
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content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Weather Bureau
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.314550
label: accession number
content: 204612
label: catalog number
content: 314550
objectType: label: Object Name
content: pocket aneroid barometer
physicalDescription: label: Measurements
content: overall in case: 2 in x 3 in x 3 1/2 in; 5.08 cm x 7.62 cm x 8.89 cm