Archiv Eigentümer(in) / Owner's archive
Courtesy of Norton Museum of Art, West Palm Beach, Bequest of R. H. Norton, 53.5
Courtesy Thomas Ammann Fine Art AG
Sprengel Museum Hannover, Kunstbesitz der Landeshauptstadt Hannover, Schenkung Volkswagenwerk GmbH, Wolfsburg (1956) / Ali
Saint Louis Art Museum, Bequest of Morton D. May 862:1983
2013 Christie's Images Limited
Boston, Museum of Fine Arts