A Christie's employee poses with Michelangelo Pistoletto's artwork "Lei e lui - Maria e Michelangelo" at Christie's Mayfair gallery in London February 5, 2014. REUTERS/Luke MacGregor... more 
A Christie's employee poses with Michelangelo Pistoletto's artwork "Lei e lui - Maria e Michelangelo" at Christie's Mayfair gallery in London February 5, 2014. REUTERS/Luke MacGregor less 
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Reuters | Photo By LUKE MACGREGOR / Reuters
Wed, Feb 5, 2014 11:09 AM EST