GORGEOUS Double Tulip Unsigned Vintage Coro "Trembler" Brooch

This is a seldom seen, large, bouquet pin.  It measures 3-7/8 inches (9.8 cm) tall and 2.5 inches (6.5 cm) wide, a stunning addition to any jacket lapel, coat or hat.   The front of the pin has gold and rhodium plated silver tones; the back side has gold-plated color with 4 rivet points, and mildly observed vintage wear.  The tulip petals are showered with tiny rhinestones, only two of which are missing.  The rhinestone studded interior of the tulips contain ruby-red baguettes which subtly tremble, giving this piece its sensational name and visual look. The gracefully-shaped golden leaves of the bouquet bear dark green enamel and are rhinestone-bound toward the base. The back of the pin is golden with mild vintage wear, and one of the back leaves bears the original 1939 patent number. Pin is intact and stable. Though I am not a jewelry expert, this pin is in lovely vintage condition. I estimate that age based on research I do on vintage jewelry.  I will not sell items with major flaws but vintage pieces can have imperfections. Please review photo carefully, and if you like, message me with questions so that you can be confident about your purchase.  All items are sold “as-is” with no refunds, I encourage you to ask any questions you may have before making your purchase. Sent in a pretty jewelry box, no added charge. Best to you, Bella