Madrid, 2 December 1975 and Berkeley, California, 8 January 1976 - Institutional correspondence A letter from José Mario Armero to Herschel B. Chip, with reply
1955 - Internal institutional documents A list of works for the Picasso exhibition, which will travel from Paris to Munich
15 June 1956 - Invoices An invoice from R. Lerondelle for the delivery of the works arriving from New York.