The collection contains at least six pieces that Nazis confiscated from their own museums as degenerate.[21] These include Max Beckmann’s “Christ and the Woman Taken in Adultery” which came to the museum through a New York art dealer, Curt Valentin, who specialized in Nazi confiscations, and Matisse's “Bathers with a Turtle” which Joseph Pulitzer purchased at the Galerie Fischer auction held in the Grand Hôtel National, Lucerne, Switzerland, June 30, 1939.[21][22][23]