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Siegfried Woldhek shows how he found the true face of Leonardo


Siegfried Woldhek shows how he found the true face of Leonardo
Siegfried Woldhek shows how he found the true face of Leonardo
Duration: 4:24

Mona Lisa is one of the best-known faces on the planet. But would you recognize an image of Leonardo da Vinci? Illustrator Siegfried Woldhek uses some thoughtful image-analysis techniques to find what he believes is the true face of Leonardo.