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Sextant

Catalogue number:
PH*309660

Inscriptions:
"Lorieux, A. Hurlimann succ^r B Paris" and "C. & G.S. 307"

Dimensions:
radius 5.5 inches

Discussion:
This sextant has a silvered scale that is graduated every 20 minutes from -5^o to +175^o and read by vernier with tangent screw and magnifier to 30 seconds of arc. The U.S. Coast & Geodetic Survey acquired it in 1907 and transferred it to the Smithsonian in 1929.

Further Information:

Hurlimann
Sextant