Brass articulated (multi-piece) construction USMC Enlisted shoulder scales. Made similar to the NCO shoulder scales with the exception of the size. Comes with the removable fringe plate ready to have your fringe installed.
Shoulder scales were originally designed to be a form of body armor. The idea was that if a soldier wearing these was struck down by a swordsman, the blow would be diminished by the protecting scales. However, by the American Civil War these scales were worn by Enlisted and NCOs as part of their dress uniform and not for protection.