A previously lost work of art by one of the world's greatest artists is being presented at auction by Christie's.Depicting Jesus Christ as the world's savior, Leonardo da Vinci's Salvator Mundi painting is the first discovery of a da Vinci work since 1909, according to the auction house. The painting will be displayed publicly in exhibitions in New York, San Francisco, London and Hong Kong, before being auctioned off on Nov. 15.The last da Vinci painting in a private collection, it is expected to fetch around $100 million."The opportunity to bring this masterpiece to the market is an honor that comes around once in a lifetime," said Loic Gouzer, Chairman of Christie's Post-War and Contemporary Art exhibit. "We felt that offering this painting within the context of our Post-War and Contemporary Evening Sale is a testament to the enduring relevance of this picture.”The painting, believed to date back to the year 1500, was first recorded in the possession of King Charles I of England. It fell into different hands through the centuries, before being acquired by Sir Charles Robinson in 1900. Without knowing its history, the painting was eventually sold for £45 ($59) in 1958 before it disappeared again until its rediscovery in 2005. It took six years for researchers to confirm its authenticity, before it was unveiled publicly for the first time in 2011. “The Salvator Mundi is the Holy Grail of old master paintings," said Christie's senior specialist Alan Wintermute. "Long-known to have existed, and long-sought after, it seemed just a tantalizingly unobtainable dream until now."