Rome, 18 February 1954 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 18 February 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
Sao Paulo, 25 March 1985 and Madrid, 2 April 1985 - Institutional correspondence The loan of Guernica denied for Brazil exhibition
Madrid, 15 March 1986 - Institutional correspondence Letter from Alfonso E. Pérez Sánchez to Dionisio Hernández Gil
New York and Madrid, June 1988 - Institutional correspondence Correspondence between William Rubin and Alfonso E. Pérez Sánchez
1988-1989 - Institutional correspondence Correspondence related to the Guernica exhibition project at the Museum Boymans-van Beuningen in Rotterdam
August-September 1990 - Institutional correspondence Correspondence on an exhibition project in Hiroshima
Rome, 5 December 1952 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, date 5 December 1952
Rome, 10 December 1952 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 10 December 1952
Rome, 1 January 1954 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 1 January 1954
Rome, 19 June 1953 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 19 June 1953
Rome, 24 June 1953 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 24 June 1953
Rome, 18 July 1953 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 18 July 1953
Rome, 7 August 1953 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 7 August 1953
Rome, 17 August 1953 - Institutional correspondence Eugenio Real's letter to Pablo Picasso, dated 17 August 1953
Rome, 25 September 1953 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 25 September 1953
Rome, 26 November 1956 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 26 November 1956