Vintage 12k Gold filled on Silver Floral Green Crystal Brooch.

Vintage 12k gold filled on silver floral green stoned brooch. I tried to find the mark on this which is c a with an arrow through it but had no luck, sometimes that happens with older jewelry. It is almost 4 inches long, rollover clasp, marked and signed, beautiful opened back green stone and very detailed. This just screams spring to me; would be beautiful and flashy on anything you wear. This will clean up very nicely if you want it to shine, I don't do that thou, I like funky patina.