Max Beckmann self-portrait poised to fetch record price at German auction

Rarely seen work painted during artist's Dutch exile from Nazi Germany has an estimate of 20m-30m

A moody self-portrait of the 20th-century expressionist Max Beckmann painted during his Dutch exile from the Nazis is predicted to break the record for a price secured at auction in Germany when it goes under the hammer in Berlin next week.

Art lovers have been flocking first to New York and then to Berlin to see the painting in preview showings, which have offered a rare opportunity to view a masterpiece that has always been in private hands.