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.
Hamburg, 30 March 2015 - Photograph Visitors in front of Guernica Redacted (After Picasso's Guernica, 1937) , by Robert Longo