Internal institutional documents A communiqué from the Spanish government regarding the delivery of Guernica
Paris, 29 May 1947 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Alfred H. Barr Jr., dated 29 May 1947
Mexico, 10 July 1947 - Personal correspondence Juan Larrea's letter to Alfred H. Barr Jr., dated 10 July 1947
Old Westbury, New York, 4 May 1977 - Institutional correspondence Emilia Doyaga's letter to Nelson Rockefeller