Cruver Sextant

Description
This sextant was made for emergency use during World War II. The body is plastic. The scale is graduated every degree from -5° to +140° and read by vernier to 3 minutes of arc. The box is marked "U.S. MARITIME COMMISSION / CRUVER MFG. CO." The Cruver Manufacturing Co., in Chicago, began making novelty objects of plastic in the early 1900s. The U.S. Maritime Commission (fl. 1936 to 1950) was responsible for further developing and maintaining a merchant marine for the promotion of American commerce and defense.
Ref: W. J. Eckert, Lifeboat Sextant. Instructions for Use in Finding Latitude and Longitude Together with Simple Sailing Instructions (U.S. Naval Observatory, 1944).
Location
Currently not on view
Object Name
sextant
date made
1940s
maker
Cruver Manufacturing Company
Physical Description
plastic (overall material)
Measurements
overall: 9.5 cm x 27 cm x 27 cm; 3 3/4 in x 10 5/8 in x 10 5/8 in
ID Number
2003.0334.01
catalog number
2003.0334.01
accession number
2003.0334
subject
Measuring & Mapping
Navigation
See more items in
Medicine and Science: Physical Sciences
Navigation
Data Source
National Museum of American History, Kenneth E. Behring Center

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