da vinci than with the restoration of paintings, for example, by raphael leonardo painted the picture so subtly, as if there was nothing on the canvas, and in this case it is very dangerous to use chemical materials. we don't know how they will behave . jean franck knows what he is talking about five times in his life, he had the honor of holding the original in his hands. when he was taken out of all layers of protection to check the status of his whole life, he devoted study of unique technology. da vinci which he was able to unravel and reproduce himself, but the mystery of the attractiveness of mona lisa is still a mystery to many. that's all, we realized that gioconda attracts unbalanced people. you need to protect her. this is an absolutely extraordinary portrait. we do not see any difference between the face of this woman and the face of a living person. you can see the pulse of the arteries on the neck, the subtlety of the work is so unique that the most eminent artists of the world stared in horror at the very idea of trying to reproduce it and living without it. could not