Tokyo, 1 April 1963 - Institutional correspondence Akira Jin's letter to Pablo Picasso, dated 1 April 1963
New York, 9 April 1963 - Institutional correspondence Carol K. Uht's letter to Nelson Rockefeller, dated 9 April 1963
August-September 1990 - Institutional correspondence Correspondence on an exhibition project in Hiroshima
Barcelona, 1963 - Photograph Placing the Museo Picasso plaque on the outside of the Berenguer de Aguilar Palace
Paris, 20 May 1963 - Personal correspondence Jaume Sabartés’ letter to Joan Ainaud de Lasarte on placing the Museo Picasso plaque
<em>The New York Times</em>, New York, November 11, 1990, 1, 39 - Article “When Picasso Spooked the FBI”