The pigment proved Beltracchi's version was inauthentic, since it was not in use at the time that the original was painted

In 2011, he was given six years jail time for what was then understood to be a much smaller number of reproductions

Fortunately for the German art forger, he has fled the country and therefore cannot be investigated

Wolfgang Beltracchi, his wife Helene, her sister Jeanette, and Otto Schulte-Kellinghaus stand accused of selling high quality forgeries