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The latest in this annual bulletin based on research carried out at the National Gallery, London, draws on the combined expertise of scientists, conservators, and curators, bringing together a wealth of information about artists’ materials, practices, and techniques. The cleaning and restoration of The Adoration of the Kings by Botticelli and Filippino Lippi reveals its unusually complex physical and attributional history. The relining of Van Dyck’s equestrian portrait of Charles I is descr...