Vintage Coro Kinetic Spinner Brooch with Blue Rhinestones and Black Enamel

This is a vintage kinetic flower-motif 'spinner' brooch manufactured by Coro, likely dating from the 1940s to early 1950s. The piece features a complex construction with a stationary openwork scroll outer frame encircling a central, rotating flower head. The brooch is crafted from silver-toned base metal, possibly rhodium-plated. The design is heavily embellished with light blue faceted rhinestones, including one large central chaton, smaller round accents on the frame, and six pear-shaped stones pointing inward from the periphery. The spinning central component consists of radiating petals accented with black enamel and a vibrant blue center stone. Yellow enamel or faux-gold accents are visible at various points along the scrollwork border. The kinetic mechanism is a hallmark of high-quality mid-century costume jewelry, designed to add movement and catch the light. The condition appears to be fair to good for its age, showing visible signs of wear including verdigris on the metal prongs and scrollwork, some chipping or loss to the yellow enamel accents, and potential fading or aging of the blue stones. The complex multi-layered assembly demonstrates the high level of craftsmanship associated with Coro's collectible kinetic designs.