A Sotheby's employee poses for a photograph with an 18 carat gold sculpture of Kate Moss entitled "Microcosmos (Siren)" by Marc Quinn at Sotheby's in London October 7, 2011. The piece is estimated to sell between 500,000 - 700,000 pounds ($777,000 - 1.1 million) when it is auctioned in London on October 13.[Photo/Agencies]