Privatsammlung in der Hamburger Kunsthalle. Foto: Elke Walford
Ahlen, Kaldewei Kulturstiftung. Foto: Fredrik Nilsen Studio, Los Angeles
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
Berlin, Jörg Maaß Kunsthandel. Foto: Jens Ziehe, Berlin
Archiv Eigentümer(in) / Owner’s Archive. Foto: Peter Schälchli, Zürich
Museum Folkwang Essen / ARTOTHEK
Cleveland Museum of Art. Gift of Mrs. Henry White Cannon by exchange 2013.7