Milan, 1953 - Internal museum documents An expense inventory for the Pablo Picasso exhibition at the Palazzo Reale
New York, 10 March 1955 - Institutional correspondence Alfred H. Barr Jr.'s letter to Dorothy Miller and Dorothy Dudley
15 September 1960 - Internal museum documents A cheque for Pablo Picasso in payment for the reproductions of Guernica and Three Musicians
1953 - Internal museum documents List of works for the Pablo Picasso exhibition in Rome, with date, measurements and origin