Costume jewelry design by Adolph Katz for Coro. This design was patented on 11-5-47. There were several animal designs in this series. This pin is of a bird in flight with one wing in a gently curving swoop position. It is Rose Gold over a base metal. The torso is set with a large faceted pink glass rhinestone. The head is set with a brilliant cut Aquamarine stone. It measures 1 3/4 x 1 5/8 inches. A desireable piece and is in very good condition.