Smithsonian - National Museum of American History, Behring Center

 
Physical Sciences Collection - Surveying and Geodesy

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Theodolite - click to enlarge

Theodolite - click to enlarge

Click photos to enlarge.

Theodolite

Catalogue number:
PH*309664

Inscriptions:
"FAUTH & CO. WASHN D.C. No 966" and "U.S.C.&G.S. No. 160"

Dimensions:
height 10 inches; horizontal circle 5.25 inches diameter; vertical circle 4 inches diameter; telescope 7 inches long

Discussion:
G. N. Saegmuller described this as a "Four-inch Theodolite, As furnished to the U. S. Government Surveys," and priced it at $300. This example was made after 1887 when Saegmuller began putting serial numbers on Fauth instruments, and before 1905 when Fauth & Co. went out of business. The United States Coast and Geodetic Survey transferred it to the Smithsonian in 1929. The horizontal and vertical circles are silvered, and read, with opposite verniers and magnifiers, to 30 seconds.

Ref: George N. Saegmuller, Descriptive Price-List of First-Class Engineering & Astronomical Instruments (Washington, D.C., 1903), p. 41.

Further Information:

Fauth
Theodolite
Saegmuller

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