London, 7 October 1938 - Personal correspondence Roland Penrose's postcard to Pablo Picasso and Dora Maar
London, 1938 - Photograph Visitors to the exhibition Picasso's Guernica at the New Burlington Galleries
London, 1938 - Exhibition catalogue Catalogue of the exhibition Picasso's Guernica at the New Burlington Galleries
London, 1938 - Internal institutional documents List of guarantors of Guernica at the White Chapel Art Gallery
London, 9 July 1938 - Personal correspondence E. L. T. Mesens' letter to Roland Penrose, dated 9 July 1938
London, 15 September 1938 - Personal correspondence E. L. T. Mesens' letter to Roland Penrose, dated 15 September 1938
New York, 7 October 1953 - Institutional correspondence A letter from Letitia T. Howe to Pablo Picasso
Paris, 3 January 1953 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 3 January 1953
Paris, 5 January 1953 - Institutional correspondence Letter from the Assemblé National of France to Pablo Picasso
Paris, 13 February 1953 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 13 February 1953
Paris, 11 March 1953 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 11 March 1953
Paris, 18 April 1953 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 18 April 1953