of Loughton, Essex, maker of copying machines.
of 1 Central Buildings, Westminster.(1929)
of Clarence House, 4 Central Buildings, Westminster, London, SW1 (1937)
1927 Company founded.
1928 Private company.
1937 Sensitized plan-copying material manufacturers. 
1939 See Aircraft Industry Suppliers.
1942 Company made public.
1961 Manufacturers of dry developed sensitized paper, opaque and tracing cloths, photoprinting and developing machinery; office document copying equipment and materials. Also pre-sensitised litho-plate and microfilming materials and equipment. 850 employees. 
Sources of Information
- The Engineer 1929/09/13
- 1937 The Aeroplane Directory of the Aviation and Allied Industries
- 1961 Dun and Bradstreet KBE
- The Times, Oct 08, 1964
- The Times (London, England), Monday, Dec 14, 1964