Silver clip earrings by Coro. The Earrings are NOT Marked Sterling, and have no other mareks on them except for the Coro Scrip. They do look like Silver, and they are older. Coro sometimes had work done for US Department Stores in Mexico and used Spratling and his Contempories. I think these are from that era. The Aztec Design is mellow and beautiful. they are 1 1/8 inches.