MoMA, New York, January 8, 1970 - Photograph The Art Workers' Coalition and Guerrilla Art Action Group protest in front of Guernica
Paris, 9 June 1953 - Institutional correspondence Maurice Jardot's letter to Francisco Matarazzo Sobrinho
Madrid, 29 May and 10 June 1981 - Institutional correspondence A letter from Felipe Cons Gorostola to Álvaro Martínez Novillo, and reply
23 February 1954 - Institutional correspondence Maurice Jardot's letter to Pablo Picasso, dated 23 February 1954
20 September 1954 - Institutional correspondence Maurice Jardot's letter to Jaime Sabartés, dated 20 September 1953