VINTAGE DOLAN BULLOCK TIGER'S EYE OVAL TIE TACK SET IN DB 14/20 GOLD

Vintage Dolan Bullock tiger's eye tie tack. Stamped DB 14/20 on the back. The best I can tell from my research is that 14/20 means it's gold plated or gold filled. I may be wrong in my understanding. Oval shape with elevated tiger's eye in the center and gold bezel. The center elevation is .25" high. Measures .5" long x 7/16" wide. The back piece is silver tone. In very good preowned condition.