1943 - Internal museum documents Itinerary of the touring exhibition Picasso: Forty Years of His Art and its adaptations from 1940 to 1943
Paris, 12 November 1969 - Institutional correspondence A letter from Roland Dumas to William S. Lieberman, dated 12 November 1969
Paris, 12 November 1969 - Institutional correspondence A letter from Roland Dumas to William S. Lieberman, dated 12 November 1969
26 July 1943 - Press release and communication Picasso's huge mural of the destruction of Guernica by bombing shown at the Museum of Modern Art, New York
New York, 22 November 1969 - Institutional correspondence A letter from William S. Lieberman to Roland Dumas
New York, 23 October 1969 - Institutional correspondence Elizabeth Shaw's letter to William S. Lieberman