Near-Invisible Drawings Discovered on Back of Da Vinci Masterpiece

[Curator] Sylvain Laveissière pointed out some grey marks that had previously been dismissed as stains. To him they resembled a horse’s head and a human skull...
When the painting was photographed with an infra-red camera at the Centre for Research and Restoration of the Museums of France, he was proved right. On the wood on which the work was mounted was an 18cm by 10cm (7in by 4in) equine head and a 16.5cm by 10cm skull, complete with orbital and nasal cavities, jaw and teeth. The camera detected a third drawing, a 15cm-high infant Jesus with a lamb, which was invisible to the naked eye.

Article & video at Times Online


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