Signed Coro Duette and the patent numbers. Pair of Cockatoos double pin clips (fur clips) on a floral branch. Ornate pave rhinestone birds with enameling. Some of the enameling is worn showing the bright rhodium plating beneath. Rhinestones sparkle but are showing their age and have yellowing. Calopsitta piece circa 1941. 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.