Large 1920s Mexican Taxco Sterling Silver Purple Amethyst Brooch

This is an amazing Mexican brooch that was made in Taxco in the 1920s.

It is huge measuring 4 1/2" by 3". It is all hand-made.

Has a hand formed flower, seed pods and five genuine purple amethyst berries. 

It is marked "Mexico Silver". Acid tested sterling. Weighs 30.9 grams. 

The pin back has a locking clasp and a long pin. The tip of the pin is bent down and I think this was done by the previous owner, perhaps to keep it from catching on clothing or hair. I left it as found.

It is tarnished and has not been cleaned or polished to preserve the original patina and value as vintage.