A model displays a set of unissued 1968 "Great Victory of the Cultural Revolution" stamps during a preview ahead of the self-titled 'largest ever' auction of Chinese stamps in Hong Kong on September 20, 2011. Auctioneers were estimating that the 3,500 lots would fetch over nine million USD during the sale to be held from September 23 to 26. AFP PHOTO / ED JONES (Photo credit should read Ed Jones/AFP/Getty Images)
