New York, 10 March 1955 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 10 March 1955
New York, 9 July 1956 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 9 July 1956
Paris, 25 June 1954 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 25 June 1954
New York, 10 March 1955 - Institutional correspondence Alfred H. Barr Jr.'s letter to Dorothy Miller and Dorothy Dudley
New York, 11 March 1955 - Institutional correspondence Alfred H. Barr Jr.'s letter to Daniel-Henry Kahnweiler, dated 11 March 1955
Paris, September 7, 1955 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated September 7, 1955
Paris, 13 April 1956 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 13 April 1956
Paris, 25 April 1956 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 25 April 1956
Amsterdam, 22 May 1956 - Institutional correspondence Willem Sandberg's letter to Pablo Picasso, dated 22 May 1956
Stockholm, 23 October 1956 - Institutional correspondence A letter from Bo Wennberg and K. G. Hulten to Pablo Picasso
19 July 1956 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 19 July 1956
New York, 31 March 1956 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 31 March 1956
Paris, 17 May 1956 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 17 May 1956
New York, 17 June 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter Pablo Picasso, dated 17 June 1957
Philadelphia, 18 September 1957 - Institutional correspondence Henry Clifford's letter to Pablo Picasso
New York, 17 December 1957 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 17 December 1957
October - December 1956 - Photograph Photograph of the installation of the exhibition Guernica, avec 60 études at the Nationalmuseum, Stockholm