James Mackie (L), Sotheby' s senior director and head of the Department Impressionist and Modern Art, introduces Pablo Picasso' s 1937 oil painting “Femme au béret et à la robe quadrillée (Marie- Thérèse Walter)” during a media preview at the Sotheby' s showroom in Hong Kong on January 30, 2018. (Photo by Anthony Wallace/AFP Photo)
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