Antique Sterling Silver Japanese Mask Pin/Brooch.  Possibly Started As A Menuki. The Scary Mask Face With A Freshwater Seed Pearl In Its Mouth.  Finely Crafted With Sharp Details And A Fabulous Patina.  Stamped Sterling And An "S" In A Circle - Possibly Shepard Mfg. Company.  Approximately 18mm Wide x 25mm High.  (TS783)