Coro Duette Dress Clips Brooch

Lovely Art Deco duette dress clips brooch signed Can Pat# 347175, Brit Pat # 410696 on the brooch part, Pat 185 21 88 on the clips, the patent was issued to E.Phinney in the early 30s for Cohn & Rosenberg "Coro", the brooch is made out of silver tone rhodium plated metal, accented with round and baguette clear crystals dazzling like real diamonds, can be worn as a dress adornment, lapel pins or collar clips, really stylish! The mechanism works great, with signs of wear as seen in the photos.