Vintage Mexican Green Onyx Sterling Silver Screwback Earrings

Retro Modernist / Art Deco pair of 1940s to 1960s green onyx and Mexican silver screwback earrings. Three sections separated by silver rope wire, deeply gorgeous green onyx in a silver bezel. Finished with non-pierced screw-back finding common for the era. Stamped Silver Mexico. Excellent condition, and the screw mechanism works perfectly. Total weight 8g.