Christoph von Berg, a destra, e Willi Korte, uno dei principali studiosi di arte trafugata dai nazisti

In this Feb. 4, 1997 file photo, Dr. Willi Korte, center, and Christoph von Berg, representing the Kunstsammlungen zu Weimar, examine “Portrait of Elizabeth Hervey Holding a Dove,” a 1778 painting by Johann Friedrich August Tischbein that was looted from the German museum at the end of World War II, at Sotheby’s auction house in New York. Korte has been at the forefront of the worldwide search for art looted by the Nazis, an undertaking that has accelerated over the past two decades, spurring court battles and putting the descendants of Jewish families that were forced to give up their possession against museums and private collectors.
(AP Photo/Richard Drew, File)