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*333630

Inscriptions:
"FAUTH & CO. WASHN D.C. No 1993"

Dimensions:
height 13.5 inches; horizontal circle 8 inches diameter; telescope 18 inches long; striding level 6 inches long

Discussion:
This 8-inch theodolite "especially adapted for triangulation" was made between 1887 when Saegmuller began putting serial numbers on Fauth instruments, and 1905 when Fauth & Co. went out of business. The edge of the horizontal circle is beveled, graduated, and read by opposite micrometer microscopes to single seconds. This instrument belonged to the University of Missouri at Columbia. New, it cost $450.

Ref: George N. Saegmuller, Descriptive Price-List of First-Class Engineering & Astronomical Instruments (Washington, D.C., 1894), p. 50.

Further Information:

Theodolite
Fauth
Saegmuller

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