This Coro Pegasus brooch features a swirl design adorned with ruby and clear rhinestones. The “Pat Pending” mark signifies that the piece was crafted while a patent for its design was still pending, a common practice for Coro jewelry before 1945. The company adopted the “Pegasus” winged horse mark in 1939. The “swan-like” design is also a recognizable Coro motif, with similar pieces featuring bird or swan designs available in various colors and styles. It is most common to find this design in all clear rhinestones but not sterling silver gold coated with the ruby red colored gems tend to make it scarce and more valuable to collectors