CoroCraft Sterling Gold Vermeil Blue Rhinestone VTG Flower Spray Brooch

Special collectible Coro craft mid century floral spray brooch, signed sterling, gold vermeil over sterling.  Larger spray brooch, approx 3"x3". Has four flower buds with three blue rhinestones on each flower bud.  Setting is in very good shape, minimal wear for the age, could be as far back as the 40's to 50's.  The pin is straight and holds tight. See pics for condition and design