New York, 20 May 1954 - Institutional correspondence Alfred H. Barr Jr.'s telegram to Pablo Picasso, dated 20 May 1954
New York, 24 September 1954 - Institutional correspondence Alfred H. Barr Jr.'s letter to Roland Penrose, dated 24 September 1954
Rome, 24 March 1954 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 24 March 1954
Rome, 24 August 1954 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 24 August 1954
Rome, 15 September 1954 - Institutional correspondence Eugenio Reale's letter Pablo Picasso, dated 15 September 1954
São Paulo, 4 February 1954 - Institutional correspondence Francisco Matarazzo Sobrinho's letter to Pablo Picasso, dated 4 February 1954
New York, 16 December 1954 - Institutional correspondence A letter from Alfred H. Barr Jr. to William A. M. Burden, René d'Harnoncourt and James Thrall Soby
Paris, 25 June 1954 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 25 June 1954
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
Paris, 5 May 1955 - Institutional correspondence A letter from the general secretary of Les Arts Décoratifs to the insurance company L'Union
Paris, 14 June 1955 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 14 June 1955
Baden-Baden, 1 July 1955 - Institutional correspondence A letter from the director of the Gesellschaft der Freunde junger Kunst Baden-Baden to the Musée des Arts Décoratifs
Paris, 5 July 1955 - Institutional correspondence A letter from François Mathey to the director of the Gesellschaft der Freunde junger Kunst Baden-Baden
