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 148,485 pages of information and 233,925 images on early companies, their products and the people who designed and built them.

Calvert Brothers

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of Potovens, Wakefield, Yorks

c1814 Company established.

1914 Manufacturers of rope, twine and cord. Specialities: jute clothes lines, agricultural ropes, hemp and jute cordage, heavy twines etc. [1]

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