Grace's Guide To British Industrial History

Registered UK Charity (No. 115342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 162,346 pages of information and 244,505 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Comptometer

From Graces Guide
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Exhibit at Beck Isle Museum.
Exhibit at the Bakelite Museum.
Exhibit at Coventry Museum.
Im201403Bow-Comp11.jpg
Im201403Bow-Comp12.jpg

Manufactured by Felt and Tarrant Manufacturing Co

The first successful key-driven adding and calculating machine[1]

See Also

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Sources of Information

  1. ↑ Calculator Time line[1]
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