Hilti Art Foundation, Schaan, Liechtenstein
Courtesy Metropolitan Museum, New York (Sabine Rewald)
akg-images 212824
akg-images 583036
Courtesy Galerie Thomas, München
Richmond, Virginia Museum of Fine Arts. Foto: David Stover
2018 Christie's Images Limited
Sprengel Museum Hannover, Kunstbesitz der Landeshauptstadt Hannover, Schenkung Volkswagenwerk GmbH, Wolfsburg (1956) / Ali
Collection Albright-Knox Art Gallery, Buffalo, New York. Room of Contemporary Art Fund, 1950 (RCA1950:1). Foto: Tom Loonan
Museum Folkwang Essen / ARTOTHEK