A 17th-century Dutch old master painting stolen by the Nazis is to be auctioned in Vienna this week. Auctioneers at Im Kinsky have not shied away from describing the painting, Bartholomeus van der Helst’s Portrait of a Man, as disputed stolen art in the sales catalogue. They state that its current owner bought it in good faith from a German art dealer in 2004 and under Austrian law she has the right to sell it. Portrait of a Man was one of hundreds of works looted in 1943 from the Schloss family, whose huge col - lection of Flemish and Dutch old masters was amassed by Adolphe Schloss, a Jewish-German industrialist who lived in France. The portrait was among thousands of works singled out for Adolf Hitler’s planned Führermuseum in Linz. It was stolen again in 1945 from an Allied collecting point in Munich by thieves who took advantage of the chaos at the end of the war.