Recording Aneroid Barometer

Recording Aneroid Barometer

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Usage conditions apply
This recording aneroid barometer has an aluminum base, and glass and aluminum hood. The inscription reads “Signal Corps U.S. Army, Barograph ML3-A Serial 124. Made by Julien P. Friez & Sons, Baltimore, Md. U.S. Patent 2,165,744.”
Ref: W. E. K. Middleton, Catalog of Meteorological Instruments in the National Museum of History and Technology (Washington, D.C., 1969), p. 31.
William G. Bottinger, “Temperature Compensating Means for a Measuring Instrument,” U.S. Patent 2,165,744 (July 11, 1939).
Currently not on view
Object Name
barometer, recording aneroid
overall: 10 3/8 in x 13 1/8 in x 6 3/4 in; 26.3525 cm x 33.3375 cm x 17.145 cm
ID Number
catalog number
accession number
patent number
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Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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