Mona Lisa copy goes on show in Madrid
A copy of Leonardo Da Vinci's Mona Lisa, believed to have been painted at the same time as the original, has gone on display at Madrid's Prado museum.
The work, which has just been fully restored, is thought to have been painted by a Da Vinci assistant.
"I think what's important is it enables us to understand how Leonardo worked in his studio," said deputy director of conservation, Gabriele Finaldi.
Tom Burridge reports.
21 Feb 2012