Archiv Eigentümer(in) / Owner's archive
akg-images 3822537
akg-images 228132
© Staatsgalerie Stuttgart
Sprengel Museum Hannover / Michael Herling / Aline Gwose
Courtesy Thomas Ammann Fine Art AG
New York, Moeller Fine Art
Mark Ranney Memorial Fund 1946.1 - University of Iowa City Museum of Art. Reproduced with permission from The University of Iowa