London, 6 November 1938 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 6 November 1938
Copenhagen, 31 October 1956 - Institutional correspondence Lars Rostrup Boyesen's letter to Pablo Picasso
Copenhagen, 31 October 1956 - Institutional correspondence Lars Rostrup Boyesen's letter to Daniel-Henry Kahnweiler
Copenhagen, 31 October 1956 - Institutional correspondence Lars Rostrup Boyesen's letter to the Museum of Modern Art, New York
Paris, 6 November 1956 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Lars Rostrup Boyesen
New York, 21 November 1956 - Institutional correspondence Alfred H. Barr Jr.'s letter to Lars Rostrup Boyesen
Paris, 1 March 1958 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 1 March 1958
London, 18 April 1980 - Institutional correspondence Nicholas Serota's letter to Roland Penrose, dated 18 April 1980
London, 1 May 1980 - Institutional correspondence Nicholas Serota's letter to Roland Penrose, dated 1 May 1980
London, 2010 - Exhibition catalogue Installation catalogue The Nature of the Beast, Whitechapel Art Gallery
3 December 1937 - Newspapers Picasso's Guernica included in an exhibition in Oslo, Copenhagen and Stockholm
Londres, 27 de junio de 2007 - Photograph Anti Tony Blair Iraq war demonstration at the door of the new London home of former British Prime Minister Tony Blair
London, 26 July 1938 - Minutes Minutes from a National Joint Committee For Spanish Relief meeting, dated 26 July 1938
London, 12 September 1938 - Minutes Minutes from a National Joint Committee For Spanish Relief meeting, dated 12 September 1938
