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 148,408 pages of information and 233,867 images on early companies, their products and the people who designed and built them.

Hartley Main Collieries

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c1929 Amalgamation of the Cramlington Coal Co and the Seaton Delaval Collieries

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