Paris, 10 February 1955 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Alfred H. Barr Jr., dated 10 February 1955
Mainz, 2 May 1956 - Institutional correspondence J. Mougin's letter to François Mathey, dated 2 May 1956
Paris, 14 March 1956 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 14 March 1956
Hamburg, 30 March 2015 - Photograph Visitors in front of Guernica Redacted (After Picasso's Guernica, 1937) , by Robert Longo
15 January 1940 - Internal museum documents Circulating exhibition contract for Picasso: Forty Years of His Art, between the Museum of Modern Art, New York, and the Minneapolis Institute Of Arts
15 January 1940 - Internal museum documents Circulating exhibition catalogue for Picasso: Forty Years of His Art (second edition), between the Museum of Modern Art, New York, and the Minneapolis Institute of Arts