H. J. Green Maximum and Minimum Thermometers

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.
Currently not on view
Object Name
maximum and minimum thermometers
date made
after 1890
H. J. Green
overall: 10 1/2 in; 26.67 cm
place made
United States: New York, Brooklyn
ID Number
catalog number
accession number
Measuring & Mapping
World War I
Thermometers and Hygrometers
See more items in
Medicine and Science: Physical Sciences
Thermometers and Hygrometers
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
U.S. Signal Corps

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