Pretty incredible Rosenthal Studio Line Porcelain Bracelet by Rosenthal China circa 1980s. It is a design from the famous German Op-Art line by the Dutch artist Johan van Loon. It measures 2" at its widest and the opening is about 1" and your wrist has to fit through it so it is for a small wrist. There are a few scratches on the gold but no chips or damage to the porcelain. It is signed in green as pictured. An unusual piece of art jewelry.