Geomagnetic Instrument


The inscriptions on the compass base plate of this multipurpose instrument read “GEOPHYSICAL INSTRUMENT CO. / WASHINGTON, D.C.” and “SER. No.”

Maker: Geophysical Instrument Co.Geophysical Instrument Co.

Location: Currently not on view

Place Made: United States: District of Columbia, Washington

See more items in: Medicine and Science: Physical Sciences


Exhibition Location:

Data Source: National Museum of American History

Id Number: 1983.0039.08Catalog Number: 1983.0039.08Accession Number: 1983.0039

Object Name: geomagnetic instrument

Measurements: overall: 2 1/2 in x 8 3/16 in x 6 5/8 in; 6.35 cm x 20.79625 cm x 16.8275 cmoverall: 2 5/8 in x 8 1/8 in x 6 1/4 in; 6.6675 cm x 20.6375 cm x 15.875 cm


Record Id: nmah_1761071

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