Mexican pendant hand made silver turquoise 2 sided ll2070

This large pendant is handmade of sterling silver and two shades of turquoise. Green turquoise on one side and blue on the other. The inlaid motifs are in silver, copper and brass. It is marked but I can't make out the markings. It is just about 2 inches in diameter. It looks like it is Mexican.

Condition is excellent. I don't know if this is modern or of some years.