18 Jun 2014, London, England, UK --- London, United Kingdom. 18th June 2014 -- A Sothebys employee looks at Composition with Red, Blue and Grey by Piet Mondrian (Est. 13-18 million) during the press view of the Impressionist & Modern Art and Contemporary Art Summer sales at Sothebys London. -- Sothebys Impressionist & Modern Art and Contemporary Art Summer sales in London. --- Image by © Piero Cruciatti/Demotix/Corbis