Courtesy Galerie Kornfeld, Bern

Düren, Leopold Hoesch Museum. Foto: Aachen, Peter Hinschläger

Courtesy Villa Grisebach, Berlin

Ahlen, Kaldewei Kulturstiftung. Foto: Fotostudio Bartsch, Berlin

Ahlen, Kaldewei Kulturstiftung. Foto: Fotostudio Bartsch, Berlin

Sotheby's Deutschland

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