New York, 8 April 1940 - Institutional correspondence Elodie Courter Osborn's letter to Henry Sayles Francis, dated 8 April 1940
New York, 15 April 1940 - Institutional correspondence Elodie Courter Osborn's letter to Henry Sayles Francis, dated 15 April 1940
1940 - Internal museum documents Circulating exhibition contract for Picasso: Forty Years of His Art (second edition), between the Museum of Modern Art, New York, and the Cleveland Museum of Art
12 September 1981 - Newspapers Protests in the Basque Country over the installation of Guernica in the Casón del Buen Retiro
20 January 2019 - Newspapers A projection of Guernica during the 'I Lombardi alla prima crociata' Verdi's opera (El País)