Copper Flower Pin, vintage brooch

EUC. In excellent vintage condition, this copper metal pin is from an estate sale. I believe it’s made of solid copper but it isn’t marked. The flower petals are shaped/curled and the larger petals have a pattern stamped on them. Approx. 1.75 inches in diameter. Pin back works find and has a safety clasp. I haven’t cleaned or polished this at all.