A Sotheby's employee works above Lucio Fontana's "Concetto Spaziale" at Sotheby's auction house in London October 11, 2013. The artwork, with an estimated value of $1-1.4 million, forms part of the ... more 
A Sotheby's employee works above Lucio Fontana's "Concetto Spaziale" at Sotheby's auction house in London October 11, 2013. The artwork, with an estimated value of $1-1.4 million, forms part of the exhibition "Frieze Week" and will be auctioned in in London on October 17. REUTERS/Stefan Wermuth (BRITAIN - Tags: SOCIETY BUSINESS) less 
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Reuters | Photo By STEFAN WERMUTH / REUTERS
Fri, Oct 11, 2013 11:00 AM EDT