Troughton & Simms Geodetic Transit

Troughton & Simms Geodetic Transit

Usage conditions apply
Downloads
Description
This instrument, which the U. S. War Department transferred to the Smithsonian in 1933, was probably used by the Army Topographical Engineers.It is marked "Troughton & Simms, London 2" and was made perhaps as early as the 1840s. It has a double-cone horizontal axis, a lamp for illuminating this axis, a large striding level, a small vertical circle at one end of the horizontal axis, and an iron base.
Location
Currently not on view
Object Name
geodetic transit
maker
Troughton and Simms
place made
United Kingdom: England, London
Measurements
telescope: 31 in; 78.74 cm
aperture: 2 3/8 in; 6.0325 cm
striding level: 18 in; 45.72 cm
vertical circle: 5 in; 12.7 cm
ID Number
PH.310559
accession number
122836
catalog number
310559
Credit Line
War Department
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Surveying and Geodesy
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Comments

Add a comment about this object