Is 16th-century charcoal sketch a naked Mona Lisa?
By Luke Baker PARIS (Reuters) – A French art expert believes a charcoal drawing kept in a collection for more than 150 years may be a preparatory sketch made by Leonardo da Vinci of the Mona Lisa. The black-and-white drawing of a woman, nude from the waist up, known as the Monna Vanna, was previously […]
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