Paris, 9 June 1953 - Institutional correspondence Maurice Jardot's letter to Francisco Matarazzo Sobrinho
23 February 1954 - Institutional correspondence Maurice Jardot's letter to Pablo Picasso, dated 23 February 1954
10 January 1998 - Newspapers Experts from major museums around the world analyse the conservation of "Guernica"
20 September 1954 - Institutional correspondence Maurice Jardot's letter to Jaime Sabartés, dated 20 September 1953