Seller: roses22 (1,846) 96.8%, Location: Adelphia, New Jersey, Ships to: US & many other countries, Item: 372686426632 These beautiful plates are true works of art. It looks like they were etched by hand. There are some spots of tarnishing as you can see in the pics. I don't know much about cleaning metal so I'm leaving that up to the buyer. I did not have the metal tested so I am assuming by the colors and solid weight of the piece that the metals are copper, brass and silver - but I can't say for sure. This is not signed so I don't know the maker or age. I assume it's Egyptian. Thanks for looking!