This is a pair of vintage screw back earrings signed SILVER MEXICO. This is a very early mark for Mexican jewelry. The earrings have a modernistic design to them. The earrings measure 7/8 of an inch in diameter and weigh 6.5 grams. They are in very good condition but do have a heavy age patina and may need cleaning or polishing. Please let me know if you have any questions. Thanks for stopping by.