Did Leonardo da Vinci draw nude Mona Lisa?

A nude sketch that bears a striking resemblance to the Mona Lisa may have been drawn by Leonardo da Vinci, experts have said.

Scientists at the Louvre in Paris, where the painting is held, have been examining a charcoal drawing known as the Monna Vanna, which had been attributed to the Florentine master’s studio.

The large drawing has been held since 1862 in the huge collection of Renaissance art at the Conde Museum, in the palace of Chantilly, north of the French capital.

After a month of tests, curators believe the sketch is at least in part by Leonardo. “The drawing has a quality in the way the face and hands are rendered that is truly remarkable. It is not a pale copy,” said curator Mathieu Deldicque.

You can see the image here