Kunsthalle Bielefeld. Foto: Philipp Ottendörfer
Kunstpalast - ARTOTHEK
Solomon R. Guggenheim Museum, New York 70.1927
Ahlen, Kaldewei Kulturstiftung / Courtesy Galerie Kornfeld, Bern
Los Angeles Iris & B. Gerald Cantor Foundation
Schloßmuseum Murnau, Bildarchiv
Courtesy Galerie Thomas, München
Kansas City, Missouri, The Nelson-Atkins Museum of Art. Gift of the Friends of Art, 54-86. Image courtesy Nelson-Atkins Media Services / Photo: Jamison Miller
Houston, Sarah Campbell Blaffer Foundation
Ahlen, Kaldewei Kulturstiftung. Foto: Camerarts, Inc., New York