1955 - Press release and communication Thirty individual collectors and eight national museums in Europe and the United States contribute paintings for the first Picasso retrospective in Paris since the war
23 May 1955 - Press release and communication A press release on the opening of the exhibition Picasso at the Musée des Arts Décoratifs, Paris
New York, 3 September 1981 - Internal institutional documents Inventory and conservation report on the works collected by New York's Museum of Modern Art to be sent to Spain
New York, 8 September 1981 - Internal institutional documents A confidential and private document signed by Álvaro Martínez-Novillo and José María Cabrera in New York