Brussels, 14 May 1956 - Institutional correspondence A letter from the Spanish ambassador in Belgium to Alberto Martín-Artajo Álvarez
Paris, 1937 - Photograph Inside the Spanish Pavilion at the Paris International Exhibition of Art and Technology in Modern Life. Pablo Picasso's Guernica and the Mercury Fountain, by Alexander Calder
ca. 1952–1957 - Internal museum documents Publicity report for the exhibition Studies for Guernica by the Cincinnati Art Museum, addressed to the Travelling Exhibitions Department at the Museum of Modern Art, New York