Underwood Sundstrand 11240SP Adding Machine
Underwood Sundstrand 11240SP Adding Machine
- Description
- This hefty ten-key listing electric adding machine has a gray metal case with a 13” carriage. The block of nine white number keys has a zero bar below. Numbers of up to ten digits may be entered. To the left are correction, back space, and repeated addition keys. To the right are subtraction, addition, and no total keys. Left of these keys is a lever that can be set at “SHUTTLE” or “NORMAL.” Another lever can be set at “REG.B,” “A*B,” or “REG.A.” Another lever is unlabeled. Above the keyboard is a place indicator. Behind this are the printing mechanism, carriage, and cross-footer. Numbers of up to 11 digits can be printed. The machine has a two-colored ribbon. Tabs can be set to print columns at different locations along the platen, different sizes of paper can be used, and there are knobs for advancing the platen on both sides. The motor also is at the back.
- This is model #303 from the Patent Division of Burroughs Corporation. It is marked on the back: Underwood (/) Sundstrand (/) Product of (/) Underwood Corporation (/) Protected by United States (/) and Foreign Patents (/) Made in U.S.A.. It is also marked there: 775180 (/) 11240SP
- Compare to the Underwood Sundstrand Adding Tabulator (model 11240SP-13), described in 1990.188.07.
- Location
- Currently not on view
- Object Name
- adding machine
- date made
- 1952
- maker
- Underwood Corporation
- place made
- United States: Connecticut, Hartford
- Physical Description
- metal (overall material)
- rubber (overall material)
- paper (overall material)
- plastic (overall material)
- Measurements
- overall: 33 cm x 47 cm x 49 cm; 13 in x 18 1/2 in x 19 9/32 in
- ID Number
- 1982.0794.78
- maker number
- 775180 [/] 11240SP
- accession number
- 1982.0794
- catalog number
- 1982.0794.78
- Credit Line
- Gift of Burroughs Corporation
- subject
- Mathematics
- 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.
