Rustic Bone or Antler and Silver Disc Pendant

Fair condition. Not sure if this piece is bone, ivory or antler. The silver embossed disc designs are secure but worn. On the “back” the repousse has been damaged and the adhesive is showing through. Has a jump ring for attachment to a cord or chain. I suspect this piece is very old. Has a primitive vibe. Could be worn by either gender. About 1” round.