Thermometer
date: label: date made
content: early 20th century
name: label: maker
content: Negretti & Zambra
notes: label: Description
content: This is a sensitive precision instrument that was probably used as a standard for evaluating instruments sent to meteorological field stations. The mercury-in-glass thermometer is mounted on a white porcelain plate marked "NEGRETTI & ZAMBRA, SCIENTIFIC INSTRUMENT MAKERS, LONDON" and "ABSOLUTE" and "29" with the M/O monogram of the British Meteorological Office, the N/Z monogram of the firm, and the K/O monogram of the Kew Observatory.
label: Description
content: The plate is graduated every 5 degrees from 245 to 325. The back of the stem is white enamel and marked "29" and with the M/O and N/Z monograms; the front is graduated every degree from +243 to +325 and numbered at 245, 273, and 320. It came to the Smithsonian from the U.S. Weather Bureau.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, London
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Thermometers and Hygrometers
label: See more items in
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.314556
label: accession number
content: 204612
label: catalog number
content: 314556
objectType: label: Object Name
content: thermometer
physicalDescription: label: Measurements
content: overall: 11 in; 27.94 cm
label: Measurements
content: overall: 11 1/8 in x 1 7/16 in x 1/2 in; 28.2575 cm x 3.65125 cm x 1.27 cm