... been goals for athletes since the 1904 Summer Olympics in St. Louis.As a China-based specialist of metal ... , honoring, encouraging, its range from .999 purity gold bullion bars/coins, .999 purity silver bullion bars/coins, custom designed medals/medallions, souvenir metal coins ... pad printing, painting.4. Thickness: typically 2.5mm to 3mm in thickness, thicker medals available.5. Size: 35mm~70mm, of ...