Leipzig, Museum der bildenden Künste

Privatsammlung in der Hamburger Kunsthalle. Foto: Elke Walford

Ahlen, Kaldewei Kulturstiftung. Foto: Fredrik Nilsen Studio, Los Angeles

New York, Museum of Modern Art (MoMA), Curt Valentin Bequest, 328.1955© 2018. Digital image, The Museum of Modern Art, New York / Scala, Florence

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Mark Ranney Memorial Fund 1946.1 - University of Iowa City Museum of Art. Reproduced with permission from The University of Iowa

Berlin, Jörg Maaß Kunsthandel. Foto: Jens Ziehe, Berlin