Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,459 pages of information and 233,880 images on early companies, their products and the people who designed and built them.
of 19 and 21 Heddon Street, Regent Street, London, W1. (1922)
Ditto Address. Telephone: Regent 5248 and 6591. Cables: "Gemmaceous, London". (1947)