Courtesy Villa Grisebach, Berlin
2007 Christie's Images Limited
Bayerische Staatsgemäldesammlungen - Sammlung Moderne Kunst in der Pinakothek der Moderne München
Courtesy Stedelijk Museum Amsterdam
Mark Ranney Memorial Fund 1946.1 - University of Iowa City Museum of Art. Reproduced with permission from The University of Iowa
akg-images 583036
Minneapolis, Institute of Art