<< >>
Usage conditions apply
Keuffel & Esser termed this a "high grade" sextant as made for the U.S. Navy. The frame is gun metal. The scale is silvered, graduated every 10 minutes from -5° to 155° and read by vernier with tangent screw and magnifier to 10 seconds of arc. The inscription reads "KEUFFEL & ESSER Co NEW YORK 4652." The serial number indicates that it was made in 1900. New it cost $120.
Ref: Keuffel & Esser, Catalogue (New York, 1906), p. 414.
Currently not on view
Object Name
date made
Keuffel & Esser Co.
place made
United States: New York
United States: New Jersey
radius: 7 in; 17.78 cm
overall: 3 7/8 in x 10 3/4 in x 9 1/8 in; 9.8425 cm x 27.305 cm x 23.1775 cm
ID Number
catalog number
nonaccession number
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
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.


I got a k & e transit the serial no. is 233737 also got a number 77 0010 wonder how old it is
The number 77 0010 is the model number of the transit.
The 233737 serial number on a K&E surveying instrument indicates a date around 1973. I don't know about the date of number 77 0010.

Add a comment about this object