Emden, Kunsthalle Kunsthalle Emden
Collection Walker Art Center, Minneapolis. Gift of Mr. and Mrs. John Cowles, Sr. 1964
Courtesy Thomas Ammann Fine Art AG
Archiv Eigentümer(in) / Owner's archive
akg-images 3001581
Berlin / Köln, Archiv Mayen Beckmann. Foto: Fotostudio Bartsch, Berlin