$500m of art under one roof

The exhibition of masterpieces including works by Monet, Van Gogh, Rothko, Richter and Polke takes place at Sotheby's from 10-14, April, 2015, before the works are auctioned in New York later this month.
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Gallery technicians lift Gerhard Richter's 'Abstraktes Bild', 1992 (estimated in the region of $30m), into place as the work goes on show at Sotheby's on April 10, 2015 in London, England. The exhibition of masterpieces including works by Monet, Van Gogh, Rothko, Richter and Polke takes place from April 10 -14th before the works are auctioned in New York in May. (Getty Images)
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Gallery technicians move 'The Ring' (Engagement), 1962 (estimated in the region of $50m) by Roy Lichtenstein into place, as the works go on show at Sotheby's on April 10, 2015 in London, England. The exhibition of masterpieces including works by Monet, Van Gogh, Rothko, Richter and Polke takes place from April 10 -14th before the works are auctioned in New York in May. (Getty Images)
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Gallery technicians carry Andy Warhol's 'Superman', 1981 (estimated in the region of $6/8m), onto display beside Gerhard Richter's 'Abstraktes Bild', 1992, as the works go on show at Sotheby's on April 10, 2015 in London, England. The exhibition of masterpieces including works by Monet, Van Gogh, Rothko, Richter and Polke takes place from April 10 -14th before the works are auctioned in New York later this month. (Getty Images)
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Gallery technicians lift Gerhard Richter's 'Abstraktes Bild', 1992 (estimated in the region of $30m), into place as the work goes on show at Sotheby's on April 10, 2015 in London, England. The exhibition of masterpieces including works by Monet, Van Gogh, Rothko, Richter and Polke takes place from April 10 -14th before the works are auctioned in New York in May. (Getty Images)
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A visitor looks at Henri Matisse's 'Anemones et grenades' from 1946, which is worth 5-7 million USD, with Claude Monet's ' Nympheas', from 1905, which has not been seen in public since 1945, as they hang in a gallery at Sotheby's on April 10, 2015 in London, England. The exhibition of masterpieces including works by Monet, Van Gogh, Rothko, Richter and Polke takes place from April 10 -14th before the works are auctioned in New York in May. (Getty Images)
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Claude Monet's ' Nympheas', from 1905, which has not been seen in public since 1945, hangs in a gallery as a specialist examines works on show at Sotheby's on April 10, 2015 in London, England. The exhibition of masterpieces including works by Monet, Van Gogh, Rothko, Richter and Polke takes place from April 10 -14th before the works are auctioned in New York in May. (Getty Images)
Sun 12 Apr 2015 12:35 PM GST