Saint Louis Art Museum, Bequest of Morton D. May 843:1983
Photograph Courtesy of Sotheby's, Inc. © 2002
Collection Walker Art Center, Minneapolis. Gift of Mr. and Mrs. John Cowles, Sr. 1964
Archiv Eigentümer(in) / Owner’s Archive. Foto: Peter Schälchli, Zürich
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Courtesy Hauser & Wirth Collection Services
Saint Louis Art Museum, Bequest of Morton D. May 867:1983