Contracts and agreements

This exhibition examined the ways in which art historical enquiry intersects with advances in science that had radically changed the field of conservation. Among the works were a 20th-century forgery of a portrait after the 17th-century Dutch Painter Jan Vermeer; The Coming Storm by American landscape painter George Inness, revealed by x-ray analysis to cover a painting by his son; and an enigmatic 16th-century drawing of the Mona Lisa, which, despite rigorous analysis, can neither be authenticated nor discounted as a work by Leonardo da Vinci.