Sprengel Museum Hannover / Michael Herling / Aline Gwose
akg-images 3929242
Städel Museum, Frankfurt am Main - U. Edelmann / ARTOTHEK
Nationalgalerie, SMB / Jörg P. Anders
Mark Ranney Memorial Fund 1946.1 - University of Iowa City Museum of Art. Reproduced with permission from The University of Iowa
Ahlen, Kaldewei Kulturstiftung. Foto: Camerarts, Inc., New York