| http://www.w3.org/ns/prov#value | - et, launched on Wednesday morning, comprises two 2-ounce Mandela medallions - one in gold and the other in silver - with Mandela???s image on the front and the Springbok image on the back.Alan Demby, executive chairman of The South African Gold Coin Exchange said that the 2-ounce silver coin was the first of its kind. ???Paired with a limited mintage of only 500 units, this set is a must for any c
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