VINTAGE STERLING SILVER & BLACK SQUARE CLIP ON EARRINGS

Vintage sterling silver and black clip on earrings. There are some scratches on the silver from wear. The black part of the earring is the bottom when worn. It may be enamel, but I'm not sure of the material. See pictures. In very good preowned condition. 1 1/4"L x 1 1/8"W I am decluttering my late grandmother's collection.