2007 Christie's Images Limited
San Francisco Museum of Modern Art, Gift of Louise S. Ackerman. Foto: Katherine Du Tiel
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Emden, Kunsthalle Kunsthalle Emden
Museum Ostwall im Dortmunder U. Foto: Jürgen Spiler, Dortmund
Courtesy Villa Grisebach, Berlin
Collection Walker Art Center, Minneapolis. Gift of Mr. and Mrs. John Cowles, Sr. 1964
Ludwigshafen, Wilhelm-Hack-Museum
Courtesy Thomas Ammann Fine Art AG
Ahlen, Kaldewei Kulturstiftung. Foto: Fotostudio Bartsch, Berlin
Leipzig, Museum der bildenden Künste
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© Staatsgalerie Stuttgart
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Museum Folkwang Essen / ARTOTHEK
Board of the Trustees of the University of Illinois on behalf of its Krannert Art Museum University of Illinois. Purchase through the Festival of Arts Purchase fund 1950-2-1
Fort Dodge, Blanden Art Museum
Collection Albright-Knox Art Gallery, Buffalo, New York. Room of Contemporary Art Fund, 1950 (RCA1950:1). Foto: Tom Loonan