Madrid, 12 December 1975 - Institutional correspondence A letter from José Mario Armero to M. Rosenthal
New York, 28 April 1977 - Internal institutional documents Conversation between José Mario Armero and William Rubin
Madrid, 2 September - Internal institutional documents A letter on Guernica by José Mario Armero for the Culture minister, Pío Cabanillas
19 August 1977 - Internal institutional documents Summary of the meeting between José Mario Armero and Roland Dumas
Madrid, 8 November 1977 - Internal institutional documents A letter from José Mario Armero to Pío Cabanillas, dated 8 November 1977
Madrid, 26 December 1977 - Institutional correspondence José Mario Armero's letter to Javier Gómez Navarro
Madrid, 28 December 1977 - Internal institutional documents A letter from José Mario Armero to Pío Cabanillas, dated 28 December 1977
Madrid, 29 December 1977 - Internal institutional documents A letter from José Mario Armero to Pío Cabanillas, dated 29 December 1977
A series of portraits, works and photographic objects in Picasso's studio, 1937 - Photograph Series of portraits, artworks and objects at Picasso's studio
A series of portraits, works and photographic objects in Picasso's studio, 1937 - Photograph Pablo Picasso in front of Guernica
Madrid, 17 September 1980 - Institutional correspondence A letter from José Mario Armero to Íñigo Cavero
Paris, 1937 - Photograph Picasso photographed by Dora Maar working on Guernica in his studio on rue des Grands-Agustin
Paris, 1937 - Photograph Picasso photographed by Dora Maar working on Guernica in his studio on rue des Grands-Agustin
Paris, 1937 - Photograph Picasso photographed by Dora Maar sitting on the floor of his studio as he works on Guernica
Paris, 1937 - Photograph Pablo Picasso, André Breton and Jacqueline Lamba photographed by Dora Maar in front of Guernica in Picasso's studio on rue des Grands-Agustins
ca. 1952–1957 - Internal museum documents Publicity report for the exhibition Studies for Guernica by the Kansas State Teachers College, Pittsburg, addressed to the Travelling Exhibitions Department at the Museum of Modern Art, New York