Antique natural occurring green oxidation copper artifacts

A dear friend who collected coppery and had the coolest and most abundant collection of antique items, she was the owner of these treasure. Sadly she moved in to the next phase of the souls journey and left her collection for me to discover. These three copper objects are just a decimal of what I saved before the estate rolled off inside of a metal box to a landfill. These pots and dishes were so orange from the natural occurrence that gives them patina, and happens by the oxidation process. Similar to rust but on copper and brass metal these pieces have three layers of patina they are green, purple, and orange all 3k