Seller: joshsellstech2 (380) 100%, Location: Downers Grove, Illinois, Ships to: US & many other countries, Item: 332883129649 Pretty old, solid metal. 5 with letter A stamped, and 3 with a different logo. All 8 are shown. Each plate weighs about a pound. They are meant to be refrigerated, and then used to serve cold foods. Not sure of the metal, some kind of hand cast grey metal, somewhat soft, shows utensil marks from years of use.