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Usage conditions apply
Mercury-in-glass minimum thermometer with a “G.M. M'F'G Co NY 41-239” inscription. The G.M. Mfg. and Instrument Co. manufactured and distributed the GEMWARE line of mechanical, optical and electrical instruments for oceanographic and limnological research. The firm was in New York City in 1953, and later moved to the Bronx.
Currently not on view
Object Name
place made
United States: New York, New York City
Associated Place
United States: New Jersey
Physical Description
glass (overall material)
metal (fittings material)
mercury (liquid material)
wood (case material)
thermometer: 32 cm x 2 cm; 12 5/8 in x 13/16 in
case: 38.5 cm x 3.8 cm x 3.8 cm; 15 3/16 in x 1 1/2 in x 1 1/2 in
overall in case: 15 1/8 in x 1 7/16 in x 1 7/16 in; 38.4175 cm x 3.65125 cm x 3.65125 cm
ID Number
catalog number
accession number
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History
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