Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 139,005 pages of information and 225,313 images on early companies, their products and the people who designed and built them.
of Great Bridge, Staffs.
of Avery House, Clerkenwell Green, London, EC1. Telephone: Clerkenwell 3092/3. Telegraphic Address: "Tandonia, South London". (1937)
Ditto Address. Telephone: Clerkenwell 3192-3. Cables: "Tandomor, Smith, London". (1947)
1936 Patent - Improvements relating to chairs, seats and the like. 
1937 Listed Exhibitor - British Industries Fair. Scientific Seating for Offices, Factories, Schools, Libraries, etc. (Stand Nos. D.613 and D.512) 
1947 Listed Exhibitor - British Industries Fair. Manufacturers of "Tan-Sad" True Posture Seating. Specifically designed Chairs for the use of Typists, Machine Operators, General Office and Executives, and for all Industrial purposes where operatives sit at their work. (Olympia, Ground Floor, Stand No. B.1436) 
1957 Patent - An improved pivotal back rest for a chair or seat. 
1975 Receiver appointed at Tan-Sad