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 138,083 pages of information and 222,926 images on early companies, their products and the people who designed and built them.

Machine Tunnelling Co

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1870 Formed for trial purposes.

1870 Demonstrated rapid rock boring on the property of the Croesor United Slate Co

1872 A public company, the Diamond Rock Boring Co was formed to acquire the business of the Machine Tunnelling Co, [1]


See Also

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Sources of Information

  1. The Times, Dec 07, 1872