Vintage silver and abalone Mexican dangle earrings stamped 925 Mexico TC-209

Vintage silver and abalone earrings with some black enamel Most like from the 90s Made in Mexico Stamped. One earring reads 0.925 Mexico. The other reads TC-209 (TC stands for the location of where the earrings were made; C stand for the initial of the silversmith). Not sure what the 209 stands for! See photo for size Weighs 12 grams Will be shipped with a decorative pouch Vintage, very good condition