Kurt Schwitters, German, 1887-1948. Mz 317. Lenox, 1921. Collage on paper, Composition: 18 x 5 11/16 cm. Kurt and Ernst Schwitters Stiftung, Hannover Kurt Schwitters Archiv im Sprengel Museum Hannover © 2006 Kurt Schwitters/Artists Rights Society (ARS), New York/VG Bild-Kunst, Bonn. Photo: Michael Herling.