Signed Coro Duette and the patent numbers. Pair of double pin clips (fur clips) on a brooch. Pave rhinestone bodies with enameling. Some of the enameling is worn showing the bright rhodium plating beneath. Rhinestones sparkle but are showing their age (slightly yellowing). Circa 1940's. Just over 3 and 1/2 inches tall.
The Cockatoo duette design was patented by G.Verrecchio in 1941. The first Coro Duettes came out in 1935.