Early Mexico Silver Amethyst Floral Brooch

This silver brooch is an early example of a Mexican silver master's workmanship. Unfortunately it is just signed Silver Mexico like many early pieces. The curly leaves and berries? curve up from the base which serves as a support for securing the pin. The amethyst cabochon is mottled in 2 tones. There is a crack but no loss to the stone. I left alot of the patina because I think it looks good but you could polish it up. Measures 3 by 1 7/8 inch. c. 1940's. Condition see photos.