73. Irrigation ditch with mature willow, by Piet Mondrian. c.1900 (Private collection; exh. David Zwirner, London)
Attributed works:
74. 192 Farben (192 colours), by Gerhard Richter. 1966 (Elisabeth and Gerhard Sohst Collection, on loan to the Hamburger Kunsthalle; exh. Dominique Lévy Gallery, London)
Attributed works:
75. Tell Shimshara, by Frank Stella. 2002 (Courtesy Bernard Jacobson Gallery; exh. Bernard Jacobson Gallery, London. Photograph by Martyn Payne)