World War Armistice negotiations in the Forest of Compiègne, November 1918. Photo: Keystone-France/Getty Images. // Barbara Hepworth photographed with Forms in Movement (Pavan) (1967) in 1968. Keystone Pictures USA/REX/Shutterstock. Artwork: © Bowness // Joan Mitchell (1925-1992), 12 Hawks at 3 O’Clock, 1960. Estimate: $12,000,000–16,000,000. Offered in An American Place: The Barney A. Ebsworth Collection Evening Sale on 13 November at Christie’s in New York © Estate of Joan Mitchell |