Paris, 10 February 1955 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Alfred H. Barr Jr., dated 10 February 1955
Pars, 9 February 1955 - Institutional correspondence Pablo Picasso's letter to Alfred H. Barr Jr., dated 9 February 1955
New York, 4 March 1955 - Institutional correspondence Alfred H. Barr Jr.'s letter to Maurice Jardot, dated 4 March 1955
Los Angeles, 1939 - Invitation Invitation to the opening of the exhibition Picasso's Masterpiece. Guernica and 63 Related Paintings and Drawings at the Stendahl Art Galleries
New York, 5 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Alfred H. Barr Jr., dated 5 June 1939
New York, 5 May 1955 - Institutional correspondence A letter from Alfred H. Barr Jr. to Pablo Picasso, dated 5 May 1955