Solomon R. Guggenheim Museum, New York 70.1927
Ahlen, Kaldewei Kulturstiftung / Courtesy Galerie Kornfeld, Bern
Berlin / Köln, Archiv Mayen Beckmann. Foto: Fotostudio Bartsch, Berlin
As per the specifications of the heirs of the Copyright owner or the managing society. Provenance: Museo Nacional Thyssen-Bornemisza, Madrid
Nationalgalerie, SMB / Jörg P. Anders
Courtesy Richard Nagy Ltd., London
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