The modern and contemporary art collection comprises more than 1, 000 paintings, drawings, prints, photographs and sculpture which include works by Ben Nicholson, David Bomberg, LS Lowry, Stanley Spencer, Gwen John, David Hockney and Bridget Riley.

BBC: NEWS | UK | England | Tees | Town celebrates gallery opening

The New York dealers, which include the Howard Greenberg, the Edwyn Houk and the Robert Mann galleries, sold the prints in good faith but will not discuss the out-of-court settlement.

ECONOMIST: Fake vintage photographs