10 September 1981 - Internal museum documents Registration sheet for the Picasso works deposited at the Casón, including Guernica
Madrid, January 1982 - Leaflet Didactic leaflet Sección de Arte Siglo XIX, Legado Picasso, Guernica, made by Gabinete Didáctico
12 September 1981 - Newspapers Protests in the Basque Country over the installation of Guernica in the Casón del Buen Retiro