Vintage Kramer Rhinestone Bird Pin - Trembler Tail

Could this be the 'blue bird of happiness'? It's a fabulous vintage rhinestone pin made by KRAMER OF NEW YORK (marked so on the back). The bird is studded with prong-set sparkling blue rhinestones, set in silvertone. The tail 'trembles' or maybe the bird is just preparing for take off. Measures 1 5/8 inches across by 2 1/4 inches high. The beak shows slight loss of the silver finish. Back has a secure rollover clasp. Overall, a great vintage pin by Kramer.