Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,417 pages of information and 233,868 images on early companies, their products and the people who designed and built them.
William Henry Barnes A.M.I.E.E., Ass.M.C.T.
1939 Assistant, II Scientific & Technical Pool, Admiralty Compass Observatory, Slough, Bucks. Private address: `Hatfield West,' The Grove, Slough, Bucks: