Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,671 pages of information and 247,074 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
1870 Formed for trial purposes.
1870 Demonstrated rapid rock boring on the property of the [{Croeser Slate Co]]
1872 A public company, the Diamond Rock Boring Co was formed to acquire the business of the Machine Tunnelling Co, [1]
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