New York, 15 June 1953 - Institutional correspondence Alfred H. Barr Jr.'s letter to Daniel-Henry Kahnweiler, dated 15 June 1953
São Paulo, 28 January 1953 - Institutional correspondence A letter from Maria Martins to Francisco Matarazzo Sobrinho
São Paulo, 11 March 1953 - Personal correspondence A letter from Paulo E. de Berrêdo Carneiro, dated 11 March 1953
Paris, 9 June 1953 - Institutional correspondence Maurice Jardot's letter to Francisco Matarazzo Sobrinho
New York, 15 June 1953 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 15 June 1953
São Paulo, 26 December 1952 - Institutional correspondence Francisco Matarazzo Sobrinho's letter to Pablo Picasso, dated 26 December 1952
New York, 7 October 1953 - Institutional correspondence A letter from Letitia T. Howe to Pablo Picasso