Archiv Eigentümer(in) / Owner’s Archive. Foto: Peter Schälchli, Zürich
Museum Folkwang Essen / ARTOTHEK
Board of the Trustees of the University of Illinois on behalf of its Krannert Art Museum University of Illinois. Purchase through the Festival of Arts Purchase fund 1950-2-1
Ahlen, Kaldewei Kulturstiftung. Foto: Camerarts, Inc., New York
Fort Dodge, Blanden Art Museum
Berlin / Köln, Archiv Mayen Beckmann. Foto: Fotostudio Bartsch, Berlin