Vacuum deposition (coating) plant, c.1950, made by W. Edwards & Co. (London) Ltd., and used at the National Physical Laboratory at Teddington. Vacuum deposition (coating) plant 1945-1955
Aluminizing plant with transformer. (Air speed indicator found to be radioactive and stored separately so 1987-528/12 Pt1 and 1987-528/12 Pt 2 created). Aluminizing plant with transformer 1950-1975