MK BarZ "Rock A Billy Skully" Sand Cast. By MK BARZ AND BULLION. MK BARZ AND WEIGHT WILL BE STAMPED ON BACK & Accompanied with Certificate of Authenticity. This item is in the category "Coins & Paper Money\Bullion\Silver\Bars & Rounds". The seller is "maegan20050" and is located in this country: US.This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.