Madrid, January 1986 - Monographs Didactic Guide on Spanish Painting in the Museo del Prado, developed by the Education Office
Madrid, 17 February 1986 - Institutional correspondence Letter from Justino Azcárate to Carmen Crespo
Madrid, 15 March 1986 - Institutional correspondence Letter from Alfonso E. Pérez Sánchez to Dionisio Hernández Gil
Rome, 1 January 1954 - Institutional correspondence Eugenio Reale's letter to Pablo Picasso, dated 1 January 1954
New York, 10 July 1954 - Institutional correspondence A letter from Alfred H. Barr Jr. to René d'Harnoncourt, dated 10 July 1954
