These are inlaid abalone clover leaf earrings. These silver vintage earrings are screw back style. They probably date from the 1950s. There’s a mark on the front of one earring – I’m not sure what it is. Both earrings are stamped on the, but the mark is not readable. Each earrings measures about 1 inch x 1 inch. I believe these earrings are sterling silver but the test is ambiguous.
|Dimensions||9 × 6 × 1 in|