H. J. Green Maximum and Minimum Thermometers

Description
This is a set of two glass thermometers, each of which has a grooved aluminum plate marked "H. J. GREEN B'KLYN. N.Y." and "SIGNAL CORPS, U.S. ARMY." One is also marked "No. 41500" and "MAXIMUM" and the other is marked "No. 44505" and "MINIMUM." Each stem has a milk white back. The clear front of the maximum stem is graduated every degree F. from -34 to +128. The clear front of the minimum stem is graduated every degree Fahrenheit from -34 to +112.
The thermometers are held in a Townsend support marked "Julien P. Friez & Sons." This support, which was introduced around 1905, enables the maximum thermometer to be released from its normal horizontal position and whirled rapidly around, and the minimum thermometer to be tilted so that the index can slide down to the end of the spirit column.
Location
Currently not on view
date made
after 1890
maker
H. J. Green
place made
United States: New York, Brooklyn
Measurements
overall: 10 1/2 in; 26.67 cm
overall: 2 3/4 in x 12 1/2 in x 3 1/8 in; 6.985 cm x 31.75 cm x 7.9375 cm
ID Number
PH.308198
catalog number
308198
accession number
70852
70852
Credit Line
U.S. Signal Corps
subject
World War I
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Thermometers and Hygrometers
Data Source
National Museum of American History, Kenneth E. Behring Center

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