SHK / Hamburger Kunsthalle. Foto : Elke Walford

Ahlen, Kaldewei Kulturstiftung. Foto: Oleg Kuchar, Ulm

Nationalgalerie, SMB / Jörg P. Anders

Saint Louis Art Museum, Gift of George and Edith Rickey 187:1993

Photograph Courtesy of Sotheby's, Inc. © 2019