This pin reminds me of peacock feathers. Purchased at a "going out of business" antique shop auction. It's about 1 1/2" X 1 1/8". "Trifari" incised on the back. Looks a little dull, so probably needs cleaning.

I gladly sell internationally, but ask that you email me before making a purchase to ask the cost to ship to your country, so you'll be aware of your total cost before buying.