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International Research On Use of Tin: Laboratories in Britain Serve The World -- New alloys platings developed by the Tin Research Institute and now in commercial use: Tin-Zine as an anti-corosion coating for radio-chassis. Tin-Nickel plating on a brass fruit-bowl, needs no mechanical polishing after deposition and bas as warmer, pleasanter tone than chromium. Spoon is coated with"Speculum" a tin-copper alloy now available as a plated coating but used earlier in Greco-Roman times and in Ancient China in the form of cast mirrors hence the name. May 14, 1953. (Photo by Central Office Of Information Photograph).
Crédit: Album / SuperStock / Sydney Morning Herald
Taille de l'image: 2844 × 2072 px | 16.9 MB
Taille d'impression: 24.1 × 17.5 cm | 1119.7 × 815.7 in (300 dpi)