Impressionist and Modern auction sales kick off in London ; will test the strength of the global art market . Popularity for Impressionist and Modern artworks still high , in spite of problems in the global financial markets . Star lots of sales at Sotheby 's and Modern include paintings by Picasso , Modern , Modigliani and Modigliani . Over at Sotheby 's auction house in London , auctioneers also anticipate a healthy sale Wednesday , with star lots in the form of paintings by Claude Monet and Austrian painter Gustav Klimt . Prices stay high because of rarity of great works by Impressionist and Modern artists with historical provenance .
Impressionist and Modern auction sales kick off in London ; will test the strength of the global art market . Popularity for Impressionist and Modern artworks still high , in spite of problems in the global financial markets . Star lots of sales at Sotheby 's and Modern include paintings by Picasso , Modern , Modigliani and Modigliani . Prices stay high because of rarity of great works by Impressionist and Modern artists with historical provenance .