This Coro "Jewels of Fantasy" pave and enamel double rose duette is rhodium base metal with rhinestones and enamelling. The pin clips are unsigned. However, the frame is marked Coro duette Pat. No 1788867. This duette was designed by Adolph Katz in 1940. It is in excellent vintage condition. This Coro duette measures 2 3/4" length x 1 5/8" diameter.