Cameo Screw Back Earrings Gold Filled

Vintage 1/20 12KT gold filled screw back earrings.
They are set with hand carved shell cameos. Cameo faces in opposite directions. The right one has better carving than the left though the left looks better in person than the photos.
Measure 3/4" x 3/8".
Nice condition, could be cleaned.
Total Weight, 4.7 grams..
Screws work great.
C. 1950s.