Madrid, 29 May and 10 June 1981 - Institutional correspondence A letter from Felipe Cons Gorostola to Álvaro Martínez Novillo, and reply
Madrid, 21 February 1969 - Institutional correspondence Florentino Pérez-Embid's letter to Joaquín de la Fuente
Stockholm, 1956 - Photograph Photographs of the assembly of the exhibition Guernica, avec 60 études in the Nationalmuseum, Stockholm