New York, 6 January 1960 - Management of reproduction rights A letter from the Spanish Refugee Aid, Inc. to Pablo Picasso
15 September 1960 - Internal museum documents A cheque for Pablo Picasso in payment for the reproductions of Guernica and Three Musicians
Paris, 5 November 1947 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 5 November 1947
Prague, 14 November 1947 - Institutional correspondence A letter from J. Groham and T. Madden to Pablo Picasso
Mexico City, 6 September 1947 - Personal correspondence Juan Larrea's letter to Pablo Picasso, dated 6 September 1947