New York, 10 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 10 June 1939
Paris, 12 May 1981 - Institutional correspondence Rafael Fernández Quintanilla's letter to Carlos Robles Piquer
Paris, ca. 1981 - Institutional correspondence A communiqué from Rafael Fernández Quintanilla on the viewpoint of Pablo Picasso's heirs
New York, 20 March 1980 - Internal institutional documents An agreement to deliver Guernica to the Spanish government
Buenos Aires, 28 November 1979 - Institutional correspondence Rafael Fernández Quintanilla's letter to José Joaquín Puig de la Bellacasa
Buenos Aires, 17 September 1979 - Institutional correspondence Rafael Fernández Quintanilla's letter to Javier Tusell, dated 17 September 1979
New York, 5 June 1939 - Institutional correspondence Evelyn Ahrend's telegram to Marcelene Peterson, dated 5 June 1939
New York, 6 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Charles Goodspeed, dated 6 June 1939
New York, 21 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Charles Goodspeed, dated 21 June 1939
New York, 21 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Grace L. McCann Morley, dated 21 June 1939
New York, 27 June 1939 - Institutional correspondence Telegrama de Evelyn Ahrend a Marcelene Peterson, dated 27 June 1939
New York, 29 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Grace L. McCann Morley, dated 29 June 1939
New York, 10 July 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 10 July 1939
New York, 24 July 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 24 July 1939
New York, 26 July 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 26 July 1939
New York, 8 August 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 8 August 1939
New York, 9 August 1939 - Institutional correspondence Evelyn Ahrend's letter to Phyllis Lane, dated 9 August 1939
New York, 15 August 1939 - Institutional correspondence Evelyn Ahrend's letter to Phyllis Lane, dated 15 August 1939
New York, 31 August 1939 - Institutional correspondence Evelyn Ahrend's telegram to Marcelene Peterson, dated 31 August 1939
