Amsterdam, 16 November 1953 - Institutional correspondence Willem Sandberg's letter to Pablo Picasso, dated 16 November 1953
Rome, 18 February 1954 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 18 February 1954
New York, 10 March 1955 - Institutional correspondence Alfred H. Barr Jr.'s letter to Pablo Picasso, dated 10 March 1955
Paris, 29 September 1955 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Willem Sandberg, dated 29 September 1955
Amsterdam, 8 November 1955 - Institutional correspondence Willem Sandberg's letter to Josep Lluís Sert
Madrid, 9 December 1975 - Institutional correspondence A letter from the general director of Artistic and Cultural Heritage, from Spain's Ministry of General Education
1980 - Photograph Crowds waiting to enter the exhibition Pablo Picasso: A Retrospective at the Museum of Modern Art, New York
22 July 1992 - Newspapers Artworks by Le Corbusier and Dalí about Spanish Civil War will accompany Guernica at CARS
Stockholm, 23 October 1956 - Institutional correspondence Ernesto de Zulueta's letter to Alberto Martín-Artajo Álvarez
New York, 20 March 1980 - Internal institutional documents An agreement over the conditions and delivery date of Guernica
Madrid, 6 December 1968 - Institutional correspondence Luis Carrero Blanco's letter to Florentino Pérez Embid
Madrid, 2 December 1975 and Berkeley, California, 8 January 1976 - Institutional correspondence A letter from José Mario Armero to Herschel B. Chip, with reply
Internal institutional documents A communiqué from the Spanish government regarding the delivery of Guernica
Madrid, 17 December 1936 - Institutional correspondence Antonio Rodríguez Morey's, Manuel Azaña's and Jesús Hernández Tomás's letter to Pablo Picasso
6 November 1952 - Newspapers Front cover with a photograph of the installation of Studies for Guernica
Paris, 1937 - Photograph Views of the Spanish Pavilion at the Paris International Exhibition of Art and Technology in Modern Life
