Author Walter Isaacson: There’s a “continuing allure of da Vinci as an artist”

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Bidding representatives react after Leonardo da Vinci's "Salvator Mundi" sold for $450 million at Christie's, Wednesday, Nov. 15, 2017, in New York. (AP Photo/Julie Jacobson)

Author Walter Isaacson describes Leonardo da Vinci’s Salvator Mundi as portrayed by da Vinci himself, via his 7,000 pages of notes left over. The masterfully engineered painting went for $450 million at an auction Wednesday.