Notice for Saturday, January 29: The museum will open at noon due to inclement weather.

Kesling Pocket Adder

Kesling Pocket Adder

<< >>
Usage conditions apply
This white plastic stylus-operated non-printing adding machine has four adjacent wheels for entering numbers. It adds and subtracts. The machine comes with a white plastic stylus, a blue and clear plastic case, and a leaflet of instructions. It is marked on the back: KESLING POCKET ADDER (/) ST. LOUIS, MO. (/) PAT. NO. 2,450,668 (/) PAT. PENDING (/) MADE IN U.S.A. It is marked on the front: KES-ADD. Distributed by Hart Vance Company, St. Louis, Missouri.
Elmer G. Kesling, “Calculator,” U.S. Patent 2,450,668, March 11, 1952.
Currently not on view
Object Name
adding machine
Other Terms
adding machine; Stylus Operated, Non-Listing
date made
Kesling, Elmer G.
place made
United States: Missouri, St. Louis
place patented
United States: Missouri, Bloomfield
Physical Description
plastic (overall material)
overall:.1 cm x 13.7 cm x 5 cm; 1/32 in x 5 13/32 in x 1 31/32 in
ID Number
accession number
catalog number
Credit Line
Gift of Robert K. Otnes
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Adding Machines
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.


Add a comment about this object