New vintage turquoise silver dangling earrings

New vintage turquoise silver dangling earrings Modern minimalist x rustic industrial. 25 mm long, full 1 mm thick silver bead 2-3x4-5 mm turquoise chips Shell detail on post hooks to post. Hooks to ball bead and turquoise chip. Butterfly backs. New vintage c. 1970s. Probably handmade in Mexico. No hallmarks. Genuine Silver and turquoise.