Keuffel & Esser Box Sextant

This box sextant was probably made around 1900. New, it cost $40. The silvered scale is graduated every 30 minutes from -5° to +150° and read by vernier with swinging magnifier to single minutes of arc. The inscription reads "KEUFFEL & ESSER CO. N.Y. MADE IN ENGLAND."
Ref: Keuffel & Esser, Catalogue (New York, 1906), p. 415.
Currently not on view
Object Name
box sextant
associated person
Keuffel, William J. D.
Esser, Herman
Keuffel & Esser Co.
overall: 3 1/4 in; 8.255 cm
place made
United Kingdom: England
ID Number
accession number
catalog 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
University of Missouri-Columbia
Additional Media

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