Kunsthalle Bielefeld. Foto: Philipp Ottendörfer
Courtesy Villa Grisebach, Berlin
Collection Walker Art Center, Minneapolis. Gift of Mr. and Mrs. John Cowles, Sr. 1964
- / ARTOTHEK
Saint Louis Art Museum, Bequest of Morton D. May 867:1983
Berlin / Köln, Archiv Mayen Beckmann. Foto: Fotostudio Bartsch, Berlin