Workers adjust Pablo Picasso's lithograph of Jacqueline Roque (L), which hangs with Andy Warhol's "Elizabeth Taylor" (C) and Edvard Munch's "Madonna", at Bonhams auction house in London July 9, 2010. The portraits will be auctioned on July 13 with estimates of 30,000-40,000 pounds ($45,463-$60,618), 18,000-22,000 pounds ($27,278-$33,340) and 500,000 - 700,000 pounds ($757,879-$1,061,031) expected respectively. REUTERS/Stefan Wermuth (BRITAIN - Tags: SOCIETY)