A French couple have come forward with 271 previously unknown works by Picasso - a staggering trove worth at least £50 million.
Picasso Administration lawyer Jean-Jacques Neuer said the retired French electrician and his wife from the Riviera showed many of the works to Picasso's son Claude and other estate administrators in September.
Mr Neuer said the administrators believe the works are authentic.
It is unclear how the man - who worked for Picasso in the 1970s - came by the pictures. The estate administrators have taken legal action for alleged illegal receipt of the works.