Felt and Tarrant Comptometer, 1887.
- Made:
- circa 1900 in Chicago
- manufacturer:
- Felt and Tarrant Manufacturing Company
- inventor:
- Dorr Eugene Felt
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LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseComptometer, early form (wooden box), 72 keys numbered
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Comptometer, early form (wooden box), 72 keys numbered
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Comptometer, early form (wooden box), 72 keys numbered
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Comptometer, early form (wooden box), 72 keys numbered
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Comptometer, early form (wooden box), 72 keys numbered
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Comptometer, early form (wooden box), 72 keys numbered, plate on top of box engraved " Trade Comptometer mark, Patd. July 19th 1887, Oct 11th 1887, Jan 8th 1889, June 11th 1889, Nov 25th 1890, Dec 15th 1891, Felt & Tarrant Manufacturing Co., Chicago"
An early example of the Comptometer, with 72 numbered keys. The top of box has a plate engraved with varoius patents up to 1891. The Felt and Tarrant Comptometer was one of the first generation of mass-produced office calculators. It was extremely successful being able to multiply and subtract quickly and efficiently.
Details
- Category:
- Mathematics
- Object Number:
- 1911-255
- Materials:
- mahogany (wood), steel (metal), brass (copper, zinc alloy) and resin (unidentified)
- Measurements:
-
Overall: 130 mm x 210 mm x 365 mm, 4.5 kg
- credit:
- Felt & Tarrant Manufacturing Company
