Spencer Browning & Rust Sextant

Description
This sextant has a brass frame. The silvered scale is graduated every 10 minutes from -5° to +145° and read by vernier with tangent screw and swinging magnifier to 10 seconds of arc. The "Spencer Browning & Rust LONDON" inscription on the arc refers to a firm that was in business from 1784 to 1840.
Location
Currently not on view
Object Name
sextant
date made
1800-1840
maker
Spencer Browning & Rust
Physical Description
mahogany (overall material)
brass (overall material)
silver (overall material)
Measurements
radius: 7 1/2 in; 19.05 cm
place made
United Kingdom: England, London
ID Number
1981.0943.01
catalog number
1981.0943.01
accession number
1981.0943
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
Credit Line
William G. Dutton
Additional Media

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