Object Details
- Fauth & Co.
- Description
- Marked "Fauth & Co. Washn D.C.," this seems to be a smaller and somewhat simpler version of the Altitude–Azimuth instrument that Fauth & Co. showed at the Centennial Exhibition of 1876 and featured in many of their publications. It was made between 1874 when Fauth began in business, and 1887 when Saegmuller began putting serial numbers on Fauth instruments. It belonged to the School of Mines, the program in science and engineering at Columbia College (now University). The horizontal and vertical circles are silvered, graduated to 10 minutes of arc, and read by micrometer microscopes to single minutes. An advertisement for this particular instrument has not been found. A similar instrument—with 10 inch horizontal circle read by 3 microscopes, and 18 inch telescope—cost $850.
- Ref: Fauth & Co., Catalogue of Astronomical and Surveying Instruments (Washington, D.C., 1877), pp. 24–26.
- Location
- Currently not on view
- Credit Line
- Columbia University. Department of Civil Engineering and Engineering Mechanics
- ID Number
- PH.334950
- catalog number
- 334950
- accession number
- 317998
- Object Name
- theodolite
- Measurements
- overall: 20 in; 50.8 cm
- horizontal circle: 8 in; 20.32 cm
- vertical circle: 6 1/2 in; 16.51 cm
- telescope: 14 in; 35.56 cm
- striding level: 8 in; 20.32 cm
- place made
- United States: District of Columbia, Washington
- Related Publication
- Fauth & Co.. Catalogue of Astronomical and Surveying Instruments, 1877
- See more items in
- Medicine and Science: Physical Sciences
- Surveying and Geodesy
- Measuring & Mapping
- National Museum of American History
- Record ID
- nmah_747613
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a5-89c3-704b-e053-15f76fa0b4fa
