New York, Neue Galerie
Von der Heydt-Museum Wuppertal. Foto: Antje Zeis-Loi, Medienzentrum Wuppertal
Courtesy Villa Grisebach, Berlin
New York, Museum of Modern Art (MoMA), Given anonymously (by exchange), 6.1942.a-c.© 2018. Digital image, The Museum of Modern Art, New York / Scala, Florence
Nationalgalerie, SMB / Jörg P. Anders
Museum Folkwang Essen / ARTOTHEK
bpk / The Metropolitan Museum of Art