Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,706 pages of information and 232,164 images on early companies, their products and the people who designed and built them.
As Hazell and Co of The Triangle, 113 Mare Street, Hackney, London, E8. Telegraphic Address: Tennicrick, Hack, London. Telephone: Dalston 286. (1922 and 1929)
of Playfair Works, Cambridge. Telephone: Cambridge 3488. Cables: "Sports, Cambridge". London Office: 26 St James's Street, SW1. Telephone: Abbey 3307. (1947)