A man walks past a window display depicting detail from artist Peter Paul Rubens outside Christie's auction...
A man walks past a window display depicting detail from artist Peter Paul Rubens painting "Portrait of a commander, three-quarter length, being dressed for battle", outside Christie's auction house in London August 4, 2010. Christie's on Tuesday announced sales of £1.71 billion for the first half of 2010. REUTERS/Luke MacGregor (BRITAIN - Tags: BUSINESS SOCIETY)