Many new, middle-aged, collectors, say Christie’s

Also on show are pastel landscapes at Artemis and high-tech furniture at Barry Friedman

The show gives the Musée d’Orsay’s verdict on its own questioned Van Goghs and draws attention to problems with other articles from the Gachet Collection

A successful show, with record attendance of 409,000 visitors

Cézanne one of the few to cross the channel