New York, 9 September 1981 - Institutional correspondence An internal letter from Richard E. Oldenburg to staff at the Museum of Modern Art, New York
New York, 31 December 1959 - Institutional correspondence Alfred H. Barr Jr.'s letter Pablo Picasso, dated 31 December 1959
New York, 8 April 1981 - Press release and communication A press release from New York's Museum of Modern Art concerning a Spanish delegation's request to send Guernica to Spain
New York, 16 October 1981 - Institutional correspondence John Koegel's letter to Javier Tusell, dated 16 October 1981
New York, 16 October 1981 - Institutional correspondence John Koegel's letter to Javier Tusell, dated 16 October 1981
New York, 16 October 1981 - Institutional correspondence John Koegel's letter to Javier Tusell, dated 16 October 1981
30 October 1981 - Institutional correspondence John Koegel's letter to Richard E. Oldenburg, dated 30 October 1981
New York, 9 September 1981 - Press release and communication A press release from the Museum of Modern Art, New York, on the transfer day of Guernica
New York, 8 September 1981 - Photograph The staff at New York's Museum of Modern Art packing Guernica
9 September 1981 - Internal museum documents Internal communiqué from Richard Oldenburg, director of the Museum of Modern Art, New York, on the departure of Guernica
New York, 1981 - Photograph A group of people slide Guernica across the floor in the Museum of Modern Art, New York
New York, 1981 - Photograph Workers closing the wooden box containing the Guernica canvas at the Museum of Modern Art, New York
Madrid, 3 September - Institutional correspondence Carlos Robles Piquer's letter to Javier Tusell, dated 3 September
Internal institutional documents An agreement between the Spanish government and the Museum of Modern Art, New York, drawn up by the Museo del Prado's lawyers
