1.STAMPING OR DIE CASTING DOUBLE SIDE DESIGN COIN 2.SHINY AND ANTIQUE PLATING 3.COLORING OR WITHOUT COLORING STAMPING OR DIE CASTING PROCESS, TWO SIDE DESIGN, BOTH SIDE COLORING OR WITHOUT COLORINGSPECIAL EDGE , DUAL PLATING, EPOXY COATING, OFFSET INSERT ARE AVAILABLE FOR YOUR CHOICENUMBERING , OR LASER ENGRAVING ON EDGES.REEDED EDGES. stamping metal coin