Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,394 pages of information and 211,464 images on early companies, their products and the people who designed and built them.
as D. Chalmers, Brothers of 163 Brunswick Road, Poplar, London, E14. Telephone East 0749. Cables: "Atorshell-Pop". (1929)
as Chalmers Brothers of 27 Old Gloucester Street, London, WC1. Telephone: Chancery 6783. Cables: "Atorshell, Holb, London". (1947)
1929 Listed Exhibitor - British Industries Fair. Manufacturers of Tortoiseshell, Ivory, Silver, Gold, Ebony (Gaboon and Macassa) and Satinwood. Optician's Sundries, Gold Joints. (Stand No. J.9) 
1947 Listed Exhibitor - British Industries Fair. Manufacturers of Goods in Ivory, Tortoiseshell, Silver, Shagreen and Exclusive woods. Ladies' and Gents' Toilet Brush Sets. Dressing Table and Travelling Case Fittings. Trepanned Toilet Brushware. Tortoiseshell and Ivory Combs. (Olympia, Ground Floor, Stand No. D.1605)