Jody Vialy Jewelry..An exquisite vintage tulip tremblant pin by Adolph Katz for Coro circa 1939. The gold-plate on the pin is pristine with no scratches or marks. The green enamel is in excellent condition but has a tiny scratch not visible to the naked eye. All stones are original, present and bright . The pin is unsigned but attributed to Coro. It is 4" high x 2" wide. This gorgeous pin is in pristine condition.