Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,419 pages of information and 211,645 images on early companies, their products and the people who designed and built them.
of 122 Southwark Street, London, SE1. Telephone: Hop 0557. Cables: "Nucrorub, Borok, London"
of 41-3 Great Guildford Street, London, SE1 (1937)
1929 Listed Exhibitor - British Industries Fair. Manufacturers of Patent "Croydex" Everclean Non-Splash for Taps. Absolutely hygienic, will not choke or blow off tap. Patent "Croydex" Moulded Non-Drip Teapot Spouts, unique design. (Stand No. PO.6) 
1933 Patent - Improvements in or relating to rubber connectors.
1937 Indiarubber manufacturers and merchants. "Croydex" Mechanical and Moulded Rubber Goods.