Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 131,598 pages of information and 209,070 images on early companies, their products and the people who designed and built them.

Arcus Gear

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April 1931.

Devoped by Mr C. R. Arcus of 13 Oriental Street, Poplar, London, E.

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