Fauth Geodetic Transit

Description
This instrument, which belonged to Columbia University, was made after 1874 when Fauth & Co. began in business, and before 1887, when Saegmuller began putting serial numbers on Fauth instruments. Fauth termed it a "Combined Transit and Zenith Instrument, as devised by Prof. G. Davidson, U. S. C. S." The frame consists of two parts—the upper one, with the uprights, can revolve upon the lower. New, it cost $990. This example differs from the instrument shown in the Fauth Catalogue. Here the small vertical circles are placed at one end of the horizontal axis. The signature reads "Fauth & Co. Washn D.C."
Ref: Fauth & Co., Catalogue of Astronomical and Surveying Instruments (Washington, D.C., 1877), pp. 20–21.
George Davidson, "Description of the Davidson Meridian Instrument," United States Coast and Geodetic Survey Annual Report (1879), Appendix No. 7.
maker
Fauth & Co.
place made
United States: District of Columbia, Washington
Measurements
aperture: 2 1/2 in; x 6.35 cm
overall length: 28 in; x 71.12 cm
ID Number
PH.335214
catalog number
335214
accession number
317998
Credit Line
Columbia University
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Surveying and Geodesy
Data Source
National Museum of American History, Kenneth E. Behring Center

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