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 133,095 pages of information and 210,772 images on early companies, their products and the people who designed and built them.

British Blue Spot Co

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of Blue Spot House, 94 to 96, Rosoman Street, Rosebery Avenue, London, EC1.

1930 Founded as a subsidiary of F. A. Hughes and Co to manufacture and market loudspeakers designed by Ideal Werke AG of Germany.

1934 Acquired by John Ismay and Sons.

1938 Company ceased trading.

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