Aneroid Barograph

Aneroid Barograph

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The War Department Signal Corps transferred this aneroid barograph to the Smithsonian in 1923. One metal tag reads "BAROGRAPH / TYPE ML3 / SERIAL 102 / SIGNAL CORPS / U.S. ARMY / ORDER 110488 / DATE 5.22.23." Another reads "JULIEN P. FRIEZ & SONS.”
Julien P. Friez (1850-1916) was born in France and emigrated to the U.S. around 1868. He opened a machine shop in Baltimore in 1890 and was soon specializing in meteorological instruments. The firm began trading as Julien P. Friez & Son in 1913, and as Julien P. Friez & Sons in 1914.
Currently not on view
Object Name
Aneroid Barograph
Friez, Julien P.
place made
United States: Maryland, Baltimore
overall: 5 5/8 in x 10 3/4 in x 5 1/4 in; 14.2875 cm x 27.305 cm x 13.335 cm
ID Number
catalog number
accession number
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Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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