16 November 1939 - Personal correspondence A letter from Francisco De Troya to Pablo Picasso, dated 16 November 1939
23 November 1939 - Personal correspondence Francisco de Troya's letter to Pablo Picasso, dated 23 November 1939
London, 1939 - Photograph A speech by Clement Attlee, leader of the Labour Party, on the opening of the exhibition Guernica pictures by Picasso at the Whitechapel Art Gallery