"(FILES) In this file photo taken on October 24, 2017 Christie's employees pose in front of a painting entitled Salvator Mundi by Italian polymath Leonardo da Vinci at a photocall at Christie's auction house in central London.The Louvre Abu Dhabi said on June 27, 2018 it will unveil its most prized acquisition to date, a Leonardo da Vinci painting that sold for nearly half a billion dollars at auction, on September 18. The 500-year-old ""Salvator Mundi"" painting depicting Jesus Christ, believed to be the wor"
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