Hydrometer

Hydrometer

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Description
Glass hydrometer with shot ballast, and paper label marked “H-B Instrument Company. There is also a U.S. Internal Revenue label. William, Frank and Valentine Hiergesell, of Philadelphia, began in business as Hiergesell Brothers in 1903. The firm registered “H-B” as a trademark in 1923. In 2012, now trading as H-B instruments, it was acquired by Bel-Art Products.
Location
Currently not on view
Object Name
Hydrometer
maker
H-B Instrument Company
Physical Description
lead (overall material)
glass (overall material)
Measurements
overall: 30.4 cm x 3.3 cm; 11 15/16 in x 1 5/16 in
overall in box: 1 3/8 in x 12 3/4 in x 1 1/2 in; 3.4925 cm x 32.385 cm x 3.81 cm
ID Number
1996.0015.02
accession number
1996.0015
catalog number
1996.0015.02
Credit Line
U.S. Department of the Treasury, Bureau of Alcohol, Tobacco and Firearms, Reference Library
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History
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