... Gold, silver,brass,nickel 2012 New Metal Coin, memorial souvenir,gold medal. Production details:* Materials: brass, iron, zinc alloy, stainless steel* Plating: gold, silver, bronze, nickel, black nickel ... , chrome, copper, anodised plating, misty plating, brushed brassanti- (gold,silver,copper, bronze)* Processing: stamped ...