Vintage/ Antique Silver Twist Back Earrings - Siam Silver Stamped, Etched Figure

These large square vintage/antique earrings are sterling silver, non pierced screw ons, and were made in Siam. These could date from the 1930s to the 1970s, but they do appear to be an earlier piece. They have a very fine etching of a spiritually or culturally important person. I have not and will not attempt to clean these, they are in original condition.