Ahlen, Kaldewei Kulturstiftung. Foto: Fotoatelier Schälchli, Zürich
Museum Folkwang Essen / ARTOTHEK
Courtesy Galerie Thomas, München
Courtesy Galerie Thomas, München
Bonn, Kunstmuseum
Boston, Museum of Fine Arts
Nationalgalerie, SMB / Jörg P. Anders
Museum Folkwang Essen / ARTOTHEK
Richmond, Virginia Museum of Fine Arts. Foto: David Stover
Archiv Eigentümer(in) / Owner's archive
Emden, Kunsthalle Kunsthalle Emden
Cleveland Museum of Art. Gift of Mrs. Henry White Cannon by exchange 2013.7
Collection Albright-Knox Art Gallery, Buffalo, New York. Room of Contemporary Art Fund, 1950 (RCA1950:1). Foto: Tom Loonan