Mexican Coin 1973 Copper Piramid.See in You Tube as error 2 Icaza.Very expensive

Mexican Coin 1973 Copper Piramid.See in You Tube as error 2 Icaza.Very expensive. See videos at Youtube. Moneda Mexican " MULA" Error 2 Icaza.moneda 20 centavos icaza 1973

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