Ahlen, Kaldewei Kulturstiftung / Courtesy Galerie Kornfeld, Bern
As per the specifications of the heirs of the Copyright owner or the managing society. Provenance: Museo Nacional Thyssen-Bornemisza, Madrid
akg-images 583024
Berlin / Köln, Archiv Mayen Beckmann
Saint Louis Art Museum, Bequest of Morton D. May 868:1983