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 148,143 pages of information and 233,681 images on early companies, their products and the people who designed and built them.

Health Ray Co

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October 1938.
November 1938.
March 1939.
March 1939.
May 1939.
December 1939.
December 1953.
December 1954.
March 1955.
February 1955.

of 50 Portland Terrace, Southampton.

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Sources of Information