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 138,090 pages of information and 222,958 images on early companies, their products and the people who designed and built them.

Diamond Drill Co

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of 60 Victoria St., London

Possibly a company established by James Ker Gulland after the Diamond Rock Boring Co was wound up.

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