Aneroid Barometer
Aneroid Barometer
Usage conditions apply
- Description
- This is a cylindrical instrument, 5.5 inches in diameter. The silvered face is marked “SIGNAL SERVICE U.S. ARMY / L. CASELLA / MAKER TO THE ADMIRALTY & ORDNANCE / LONDON / COMPENSATED / 2634 / ‘FOR ISSUE’ / NO 21.” The scale around the circumference of the face extends from 17 to 22 inches of mercury, graduated in tenths; another scale indicates altitudes from below 10,000 to above 15,000 feet.
- This was probably made after 1870 when the Signal Service was charged with organizing a national weather service. And it was probably made before the establishment of the U.S. Weather Bureau, as a civilian agency, in 1890.
- Location
- Currently not on view
- Object Name
- aneroid barometer
- date made
- circa 1856-1897
- circa 1870-1897
- 1870 - 1890
- maker
- L. P. Casella
- place made
- United Kingdom: England, London
- Measurements
- overall: 5 1/2 in; 13.97 cm
- overall: 6 3/4 in x 2 1/8 in x 5 3/4 in; 17.145 cm x 5.3975 cm x 14.605 cm
- ID Number
- PH.314547
- accession number
- 204612
- catalog number
- 314547
- Credit Line
- U.S. Weather Bureau
- See more items in
- Medicine and Science: Physical Sciences
- Measuring & Mapping
- Data Source
- National Museum of American History
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