Rupp Sextant

Karl Axel Eriksson, a native of Sweden who became a U.S. citizen around 1910, bought this sextant, secondhand, in England in 1918. He used it for the rest of his life, and believed that it helped him "advance as a sailor."
The sextant has a brass frame. The inscription reads "Michael Rupp & Co. New York" and "English." The silvered scale is graduated every 15 minutes from -5° to +135° and read by vernier with tangent screw and swinging magnifier to single seconds of arc.
Michael Rupp (1818-1899) was born in France, came to the U.S. in 1829, and settled in New York in 1844. By 1855 he was selling chronometers and other nautical instruments.
Currently not on view
Object Name
date made
Rupp, Michael
radius: 7 1/2 in; 19.05 cm
place made
United States: New York, New York
ID Number
catalog number
accession number
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Chester Hansen

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