Photograph Courtesy of Sotheby's, Inc. © 2010
Kunsthalle Bremen – Der Kunstverein in Bremen. Foto: Lars Lohrisch
Nationalgalerie, SMB / Jörg P. Anders
Saint Louis Art Museum, Bequest of Morton D. May 851:1983
Kunstmuseum Den Haag
Courtesy Galerie Thomas, München
Saint Louis Art Museum, Gift of Mr. and Mrs. Joseph Pulitzer Jr. 587:1958