A Christie's employee poses for photographs next to the German artist Martin Kippenberger's oil on canvas "Untitled", on display at offices of the auction house in London, Tuesday, Oct. 14, 2014. The painting is estimated to fetch between $15 million and $20 million (9.4 million to 12.5 million pounds and 11.8 million to 15.8 million euro) when it features in a post-war and contemporary art auction on November 12 in New York. (AP Photo/Matt Dunham), APTOPIX