28 November 1966 - Newspapers
629 documents have been found related to the story of Guernica as a political symbol.
New York, 14 April 1967 - Institutional correspondence
Alfred H. Barr Jr.'s letter to Daniel-Henry Kahnweiler, dated 14 April 1967
New York, 21 April 1967 - Institutional correspondence
Alfred H. Barr Jr.'s letter Pablo Picasso, dated 21 April 1967
8 January 1970 - Leaflet
A petition from the Art Workers' Coalition to remove Guernica from the galleries of the museum.
New York, 28 February 1974 - Institutional correspondence
A letter from the Guerrilla Art Action Group to Richard Oldenburg
Berlin, 1975 - Photograph
View of the exhibition Kunst und Politik am Beispiel Guernica Picasso und der Spanische Bürgerkrieg
1975 - Internal institutional documents