Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 143,440 pages of information and 230,057 images on early companies, their products and the people who designed and built them.
High vacuum engineers of Allendale Works, Vaughan Road, Loughborough Junction, SE5.
of Kangley Bridge Road, Lower Sydenham, London, SE26.
1919 F. D. Edwards began importing vacuum equipment.
1919 Company founded by William Edwards and Frederick David Edwards in Allendale Road, Camberwell, South London helped by the latter's wife - Edwards Equipment and Services
1937 Scientific equipment; vacuum pumps. 
1939 F. D. Edwards began manufacturing vacuum equipment
1939 See Aircraft Industry Suppliers
1940 Private company: W. Edwards and Co
1947 British Industries Fair Advert for High Vacuum. Illustration of Model SE2 Vacuum Coating Unit. Manufacturers of Vacuum Rotary and Diffusion Pumps, Measuring Equipment and Plants for Special Vacuum Processes in Industry, Research, Education. Small Dual Purpose Vacuum Pumps and Compressors. Designers and Manufacturers High Vacuum Plant. (Scientific and Optical Section - Olympia, Ground Floor, Stand No. A.1019) 
1953 Edwards moved from Lower Sydenham to new head office and factory in Crawley
1954 W. Edwards and Co (London) Ltd incorporated as a public company