Sighting Compass

Sighting Compass

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The inscription on the dial of this compass reads “LEUPOLD-VOLPEL & CO. PORTLAND, ORE. PAT APLD. FOR." The case, front and back, is branded "FORESTRY M.S.U." and the front flap is stamped "109."
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.
Currently not on view
Object Name
Leupold, Volpel & Co.
place made
United States: Oregon, Portland
overall: 5 1/2 in x 6 in x 2 1/4 in; 13.97 cm x 15.24 cm x 5.715 cm
compass: 4 7/8 in x 5 in x 4 3/4 in; 12.3825 cm x 12.7 cm x 12.065 cm
overall: 5 1/2 in x 6 in x 2 1/2 in; 13.97 cm x 15.24 cm x 6.35 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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