A painting by Italian master Caravaggio, once mistakenly thought to be by an unknown artist and almost auctioned off, has been unveiled at the Prado museum in the Spanish capital. "This is a really important event, as it is more than 45 years since no work by Caravaggio has appeared with the consensus of specialists and critics," says David Garcia Cueto, head of the Department of Italian Painting at the Prado museum IMAGES AND SOUNDBITES