Mexico Aztec Calendar Sterling Silver Opal Inlay Round Dangle Earrings Vintage

Stamped 925 Mexico - these earrings are a statement with the bright opal chips and aztec calendar motif! The opal chips are set into a black background - not sure what the black material is but could possibly be enamel or onyx. The earrings are 3/4" in diameter. Excellent vintage condition.