San Francisco Museum of Modern Art, Gift of Louise S. Ackerman. Foto: Katherine Du Tiel
akg-images 5001601
Emden, Kunsthalle Kunsthalle Emden
Courtesy Villa Grisebach, Berlin
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
Collection Albright-Knox Art Gallery, Buffalo, New York. Room of Contemporary Art Fund, 1950 (RCA1950:1). Foto: Tom Loonan