Sighting Compass


The inscription on the dial of this sighting compass reads “LEUPOLD-VOLPEL & CO. PORTLAND, ORE. PAT APLD. FOR." The case is stamped "112."

Frederick Leupold (born in Germany circa 1876) was in Boston by 1891. Adam Joseph Volpel (1874-1940) was born in Poland and came to the U.S. circa 1888. By 1911, the two men were in Portland, Oregon, trading as Leupold, Volpel & Co.

Ref: Frederick Leupold, “Surveyor’s Compass,” U.S. Patent 1,936,846 (Nov. 23, 1933), assigned to Leupold, Volpel & Co.

Location: Currently not on view

See more items in: Medicine and Science: Physical Sciences


Exhibition Location:

Data Source: National Museum of American History

Id Number: 1984.0636.03Catalog Number: 1984.0636.03Accession Number: 1984.0636

Object Name: compass

Measurements: overall: 5 3/8 in x 7 1/8 in x 1 1/2 in; 13.6525 cm x 18.0975 cm x 3.81 cmcompass: 4 7/8 in x 5 in x 4 3/4 in; 12.3825 cm x 12.7 cm x 12.065 cmoverall: 5 1/4 in x 7 in x 2 in; 13.335 cm x 17.78 cm x 5.08 cm


Record Id: nmah_1762443

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