New York, 6 May 1955 - Institutional correspondence A letter from W.R. Keating & Company International to R. Lerondelle
15 June 1956 - Invoices An invoice from R. Lerondelle for the delivery of the works arriving from New York.
28 February 1974 - Photograph The cleaning of Guernica by two restorers after Tony Shafrazi's graffiti
3 May 1939 - Invoices Shipping invoice to the Valentine Gallery for the delivery of paintings from Normandy to New York
Madrid, 24 September 1981 - Conservation documents A work plan to protect and display Guernica and its sketches in the Casón del Buen Retiro, written by the company Cubiertas and Mzov