Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,949 pages of information and 228,874 images on early companies, their products and the people who designed and built them.
Stourton House, Dacre St., 39, Victoria Street, London, SW1.
1908 Slide rules
1937 Drawing-office materials. "Ariel" Erasing Machine. "Hall-Mark" Electric Copier. "R C" Tracing Cloths