London, 6 November 1938 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 6 November 1938
Paris, 1 March 1958 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 1 March 1958
Paris, 25 August 1958 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 25 August 1958
London, 20 February 1964 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 20 February 1964 (2)
20 February 1964 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 20 February 1964
25 September and 11 October 1972 - Personal correspondence A letter from Catherine Freedberg to Roland Penrose, including the reply
14 June 1973 - Personal correspondence Roland Penrose's letter to Alfred H. Barr and Margaret Scolari Barr
New York, 3 September 1981 - Internal institutional documents Inventory and conservation report on the works collected by New York's Museum of Modern Art to be sent to Spain
London, 30 September 1938 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 30 September 1938
London, 7 October 1938 - Personal correspondence Roland Penrose's postcard to Pablo Picasso and Dora Maar
London, 21 January 1939 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 21 January 1939
London, 26 March 1939 - Personal correspondence Roland Penrose's Letter to Pablo Picasso, dated 26 March 1939
London, 15 April 1939 - Personal correspondence Roland Penrose's letter to Pablo Picasso, dated 15 April 1939
<em>Diacritics</em>, Baltimore: The Johns Hopkins University Press, vol. 25, no. 2 (summer, 1995): 9–63 - Essay “Archive Fever: A Freudian Impression”
New York, 8 September 1981 - Internal institutional documents A confidential and private document signed by Álvaro Martínez-Novillo and José María Cabrera in New York