Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,502 pages of information and 233,941 images on early companies, their products and the people who designed and built them.
Rock Drill Works, Carn Brae, Cornwall
1888 R. Stephens and Son, Carn Brae, award for improved ratchet on Climax drill.
1900 W. Stephens of the Climax Rock Drill Works.
1911 'Climax Rock Drill Works (Messrs. R Stephens and Son), at Carn Brea'