Paris, 10 February 1955 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Alfred H. Barr Jr., dated 10 February 1955
New York, 8 February 1955 - Institutional correspondence Alfred H. Barr Jr.'s letter to François Carnot
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
New York, 10 March 1955 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 10 March 1955
New York, 11 June 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter to John Rockefeller
New York, 11 June 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter to René d'Harnoncourt, dated 11 June 1957
New York, 17 June 1957 - Institutional correspondence John Rockefeller's letter to Alfred H. Barr Jr.
New York, 5 May 1955 - Institutional correspondence A letter from Alfred H. Barr Jr. to Pablo Picasso, dated 5 May 1955
