Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,427 pages of information and 211,664 images on early companies, their products and the people who designed and built them.
of 35 Gordon Square, London, WC1. Works: Mitcham, Surrey. Telephone: Museum 8253. Cables: "Quercitan, London"
1929 Advert in British Industries Fair Catalogue as an Optical, Scientific and Photographic Exhibit. Manufacturers of Metol, free from Dimethylparaphenylenediamine, the reputed cause of Metol Dermatitis; Amidol, free from oxidation products; Paramidophenol Hydrochloride, pure and commercial. Photographic Apparatus including Post Card and Paper Holders for use when enlarging. (Scientific Section - Stand No. O.17)