Kunsthalle Bielefeld. Foto: Philipp Ottendörfer
Denver Art Museum Collection: Gift of Rosa Kuschei, 1948.38. Photograph courtesy of the Denver Art Museum
2007 Christie's Images Limited
Archiv Eigentümer(in) / Owner's archive
Saint Louis Art Museum, Bequest of Morton D. May 843:1983
Hilti Art Foundation, Schaan, Liechtenstein