Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,877 pages of information and 225,311 images on early companies, their products and the people who designed and built them.
Bell's Asbestos and Engineering Supplies, merchants of insulation products, Bestobell Works, Slough
1929 Turner and Newall sold Bells United Asbestos Co's merchanting interests to Bells Asbestos and Engineering Supplies Ltd, a company outside the Turner and Newall group formed for the purpose; the goods sold were to be manufactured by Turner Brothers Asbestos Co.
1937 Asbestos manufacturers. "Belfry", "Bestobell" Asbestos Specialities. "Salamander" Asbestos Specialities 
1939 See Aircraft Industry Suppliers
1966 Bells acquired Pye's share of Bell Home Appliances when Philips bid for Pye.
1970 Company now known as Bestobell