What do we recognize a real Leonardo da Vinci drawing?

VIDEO - & nbsp; & nbsp; & quot; & quot; & quot; & quot; The naked Mona Lisa & quot; kept at Chateau de Chantilly, has just undergone a battery of analyzes to determine if the genius of the Renaissance was indeed the author. And there are clues that do not deceive!

REF: https://www.europe1.fr/culture/a-quoi-reconnait-on-un-vrai-dessin-de-leonard-de-vinci-3873725