Ahlen, Kaldewei Kulturstiftung. Foto: Fotoatelier Schälchli, Zürich
Museum Folkwang Essen / ARTOTHEK
akg-images 212824
Kunstpalast - ARTOTHEK
Archiv Eigentümer(in) / Owner’s Archive. Courtesy Franca Candrian, Kunsthaus Zürich.
Emden, Kunsthalle Kunsthalle Emden
Courtesy Hauser & Wirth Collection Services
Archiv Eigentümer(in) / Owner's archive
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