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.
Paris, 1937 - Photograph Inside the Spanish Pavilion at the Paris International Exhibition of Art and Technology in Modern Life. Pablo Picasso's Guernica and the Mercury Fountain, by Alexander Calder
Exhibition, Museo Nacional Centro de Arte Reina Sofía, Madrid, January 21 – May 4, 2015 - Exhibition Daniel G. Andújar, Operating System