Rose Art Museum, Brandeis University, Waltham, Gift of Mr. and Mrs. Abrams, 1960
Ursula Edelmann / ARTOTHEK
San Diego Museum of Art, Bequest of Earle W. Grant
Düren, Leopold Hoesch Museum. Foto: Aachen, Peter Hinschläger
Baden-Baden, Museum Frieder Burda
Courtesy Galerie Thomas, München
Städel Museum, Frankfurt am Main - U. Edelmann / ARTOTHEK
- / ARTOTHEK