Vintage sterling silver hoops clip earrings

Vintage circa 70s or earlier, two-tone sterling silver hoops screwback clip earrings, hallmarked Sterling and the maker's mark, timeless and classic design, in great condition for the age, light wear/ aging signs as seen in the photos, polished before the sale, the clip mechanism holds securely, measure 2.5 cm in diameter, come from a non-smoking environment.