Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,909 pages of information and 232,835 images on early companies, their products and the people who designed and built them.
of Nivoc House, 17-19 Hatton Wall, London, EC1. Telephone: Chancery 6011-4. Cables: "Nivoc, London"; and 157 Great Charles Street, Birmingham. Telephone: Birmingham Central 7641-3
1944 Issued catalogue of scientific instruments.
1947 Listed Exhibitor - British Industries Fair. Manufacturers of Scientific Instruments and Laboratory Equipment for Educational and Industrial Research. Specialising in Chemical and Physical Apparatus, Balances and Weights. (Olympia, Ground Floor, Stand No. A.1101) 
1954 Became Griffin and George