A security guard watches over a one million Australian dollar coin -- the biggest and heaviest gold coin in the world -- at the Commonwealth Heads of Government Meeting (CHOGM) in Perth on October 27, 2011. Weighing 1012kg, it is more than one tonne of 99.99 percent pure gold worth more than USD 55 million. The masterpiece is 80cm wide, 12cm deep, took 18 months to create with the Queen's motif on the face side and a bounding red kangaroo on obverse side. AFP PHOTO / Torsten BLACKWOOD (Photo credit should read TORSTEN BLACKWOOD/AFP via Getty Images)
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AFP TORSTEN BLACKWOOD