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