Vintage Mexican Sterling Silver Bold Earrings 1950’s

Nice big and bold vintage pair! These types are becoming harder to find. Green onyx coloured glass in sterling silver The complete mark is half covered by the screwback fasteners but between the 2 I see Plata 925 GJR. (Plata does not mean plated!!) 15/16” by a touch over 3/4” wide I have left the vintage patina intact.