New York, 30 May 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter to Daniel-Henry Kahnweiler, dated 30 May 1957
New York, 30 May 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter to Daniel-Henry Kahnweiler, dated 30 May 1957
New York, 16 February 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 16 February 1957
Paris, 17 April 1957 - Institutional correspondence A telegram from Daniel-Henry Kahnweiler to Alfred H. Barr Jr.
New York, 17 June 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter Pablo Picasso, dated 17 June 1957
New York, 17 December 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 17 December 1957
New York, 2 June 1957 - Press release and communication Picasso: 75th Anniversary. Record breaking crowds
August, 1957 - Institutional correspondence A letter from Jacqueline de la Baume Dürrbach to Nelson Rockefeller
New York, 22 September 1960 - Management of reproduction rights Alfred H. Barr Jr.'s letter Pearl Moeller
15 September 1960 - Internal museum documents A cheque for Pablo Picasso in payment for the reproductions of Guernica and Three Musicians
New York, 22 April 1960 - Institutional correspondence A letter from Jan-Albert Goris to Nelson Rockefeller, dated 22 April 1960
New York, 25 April 1960 - Institutional correspondence Jan-Albert Goris's letter to Nelson Rockefeller, dated 25 April 1960
