Judging by the ladies simplistic profile and curly hair-do, I would say it is a Gibson Girl brooch from the Art Nouveau era. I'm not thoroughly convinced it is a brooch because I can't see the back well enough to find a pin attachment. Judging by the 2 round loops at the bottom, there's a possibility it was the top to a chatelaine, but again, I can't see whether those loops are open or not. Interesting findBreezie
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