Grace's Guide To British Industrial History

Registered UK Charity (No. 115342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 162,240 pages of information and 244,492 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.

London Piston Ring Co

From Graces Guide
August 1926. Cygnet Rings.

1923 Private company incorporated[1]

1948 Subsidiary of Light Production Co Ltd for whom the company acted as sales agents.

See Also

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Sources of Information

  1. The Times, May 09, 1949