Vintage Mexican Silver Aztec Mayan Tribal Pendant with Shell & Gemstone chips

The pendant is double sided. On one side it is black enamel and says Teotihuacán Mexico on a silver pyramid and there is also a silver tribal man seen in profile wearing a head dress. There are different colored shell chips inlaid. On the reverse side the black enamel and shell are the border around an Aztec Mayan calendar. Artisan hand crafted. Very good pre-loved condition with only light wear. See photos for measurements and condition questions.