Newell Octant

Description
This octant has a rosewood frame, flat brass index arm, and ivory name plate. The ivory scale is graduated every 20 minutes from -5° to +95° and read by vernier to single minutes of arc. The "Andw Newell Maker Boston" inscription refers to Andrew Newell (1751-1798), a mathematical instrument maker in Boston. Inside the box is the trade card of David Baker, proprietor of a nautical instrument shop in New Bedford during the second quarter of the nineteenth century.
Location
Currently not on view
Object Name
octant
date made
ca 1800
maker
Newell, Andrew
Measurements
overall: 7.94 cm x 38.7 cm x 33 cm; 3 1/8 in x 15 1/4 in x 13 in
place made
United States: Massachusetts, Boston
ID Number
1991.0140.01
accession number
1991.0140
catalog number
1991.0140.01
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Medicine and Science: Physical Sciences
Measuring & Mapping
Navigation
Time and Navigation
Data Source
National Museum of American History, Kenneth E. Behring Center

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