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Quintant Sextant or Lattice Sextant

Quintant Sextant or Lattice Sextant
This instrument was manufactured by Spencer, Browning & Rust, London. A sextant is used for measuring the altitude of the sun or another celestial body; such measurements can then be used to determine the observer's geographical position or for other navigational, surveying, or astronomical applications. Dating from the 1820s-1850s, this instrument is among the earliest objects in the U.S. Geological Survey museum collection.

Object ID: USGS-000220


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Page Last Modified: Thursday, October 01, 2009