Sotheby's and dealer Mark Weiss head to court in Old Master dispute over Frans Hals portrait
Sotheby’s has begun legal action against dealer Mark Weiss over the sale of a Frans Hals painting that it now believes to be “undoubtedly a forgery”. However Weiss said he will "contest the claim vigorously".
Sotheby’s said it filed its claim in London's High Court against Mark Weiss Limited and business par…