This lovely pin is a star-burst or sea life swirl pin that was made in the 1960s. It has smooth and textured silvertone metal (maybe rhodium plated), and Emmon's name for it was "Atlantis." The pin has a faux pearl in the center and has about a 2-3/8 inch diameter. The pearl has a slight bit of wear but is not noticeable from any distance. The pin is clearly marked on the back "EMMONS ©."