Fauth Geodetic Transit

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.
Object Name
geodetic transit
Fauth & Co.
aperture: 2 1/2 in; x 6.35 cm
overall length: 28 in; x 71.12 cm
place made
United States: District of Columbia, Washington
ID Number
catalog number
accession number
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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