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Courtesy Villa Grisebach, Berlin
Collection Walker Art Center, Minneapolis. Gift of Mr. and Mrs. John Cowles, Sr. 1964
Mildred Lane Kemper Art Museum, Washington University in St. Louis. University purchase, Kende Sale Fund, 1946.
Kunsthalle Bremen – Der Kunstverein in Bremen. Foto: Lars Lohrisch
Saint Louis Art Museum, Bequest of Morton D. May 855:1983
Archiv Eigentümer(in) / Owner’s Archive. Foto: Peter Schälchli, Zürich
Kansas City, Missouri, The Nelson-Atkins Museum of Art. Gift of the Friends of Art, 54-86. Image courtesy Nelson-Atkins Media Services / Photo: Jamison Miller
Sprengel Museum Hannover, Kunstbesitz der Landeshauptstadt Hannover, Schenkung Volkswagenwerk GmbH, Wolfsburg (1956) / Ali
Courtesy Galerie Thomas, München
Collection Albright-Knox Art Gallery, Buffalo, New York. Room of Contemporary Art Fund, 1950 (RCA1950:1). Foto: Tom Loonan