Earrings Clip On, Swarovski Crystal, Heart Shaped. Excellent condition. No missing crystals or marks on stones. These sensational vintage Swarovski S.A.L. earrings are nothing but bling, bling, and more bling! This original production of Swarovski jewelry is very uncommon. Short for Swarovski America, Ltd., S.A.L. was the first name under which the famed Austrian crystal company began manufacturing their own jewelry. The "S.A.L" mark was used from 1977 to 1988, but proved to be unrecognizable to consumers. Classic hinge-clips will make the earrings incredibly comfortable to wear. This is where you will an impressed maker's mark which reads "S.A.L.". These earrings remain in outstanding vintage condition.