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Keuffel & Esser Telescope

Keuffel & Esser Telescope

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This telescope has an achromatic objective, a two-draw brass body covered with brown leather, and an amber-colored solar filter. The U.S. Coast & Geodetic Survey transferred it to the Smithsonian in 1929. the telescope has the inscription "U.S. NAVY / OFFICER OF THE DECK SPYGLASS / POWER 12½ / KEUFFEL & ESSER CO N.Y. / N 3224."
Ref: Keuffel & Esser, Catalogue (New York, 1921). P. 413.
Currently not on view
Object Name
Keuffel & Esser Co.
overall: 16 3/4 in x 1 1/4 in; 42.545 cm x 3.175 cm
overall: 16 3/4 in x 1 9/16 in; 42.545 cm x 3.96875 cm
ID Number
catalog number
accession number
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Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History
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