This tropical scene complete with palm tree, water, and distant mountains is a charming part of vintage jewelry history. Made from real butterfly wings in Brazil, this particular one is marked on the back, A.W./RIO 920.
Excellent condition. C-clasp pinback works well. Dark patina around front of rim appears black (you can polish it, but I don't recommend it). Tarnished on back. Glass seals in and magnifies the scene.
It measures 1 3/4" x 1/2".