The disappearance of a picture worth £100,000 which was painted by Rolf Harris has led to a case at the Court of Appeal.
The painting - titled Lovers on the Seine - was bought by collector Dean Hardy at a gallery in 2004.
Mr Hardy left it in storage at the gallery's warehouse in Warwick.
It was later discovered missing, and after Mr Hardy passed away a year later, his family launched a court case against the gallery.
The firm was ordered to repay £135,000 - the painting's value plus interest and legal costs.
"This is a case where Washington Green (the gallery) have dishonestly appropriated this particular painting," the judge said.
But in a twist of events on Monday, the gallery has challenged the Court of Appeal to prove what happened to the picture, saying there was no evidence that they had taken it.
A ruling is expected later this year.
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