New York, 10 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 10 June 1939
New York, 5 June 1939 - Institutional correspondence Evelyn Ahrend's telegram to Marcelene Peterson, dated 5 June 1939
New York, 6 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Charles Goodspeed, dated 6 June 1939
New York, 21 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Charles Goodspeed, dated 21 June 1939
New York, 21 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Grace L. McCann Morley, dated 21 June 1939
New York, 27 June 1939 - Institutional correspondence Telegrama de Evelyn Ahrend a Marcelene Peterson, dated 27 June 1939
New York, 29 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Grace L. McCann Morley, dated 29 June 1939
New York, 10 July 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 10 July 1939
New York, 24 July 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 24 July 1939
New York, 26 July 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 26 July 1939
New York, 8 August 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 8 August 1939
New York, 9 August 1939 - Institutional correspondence Evelyn Ahrend's letter to Phyllis Lane, dated 9 August 1939
New York, 15 August 1939 - Institutional correspondence Evelyn Ahrend's letter to Phyllis Lane, dated 15 August 1939
New York, 31 August 1939 - Institutional correspondence Evelyn Ahrend's telegram to Marcelene Peterson, dated 31 August 1939
New York, 8 September 1939 - Institutional correspondence Evelyn Ahrend's letter to Grace L. McCann Morley, dated 8 September 1939
New York, 18 September 1939 - Institutional correspondence Evelyn Ahrend's letter to Grace L. McCann Morley, dated 18 September 1939
New York, 9 October 1939 - Institutional correspondence Evelyn Ahrend's letter to Martin North, dated 9 October 1939
New York, 9 December - Institutional correspondence Evelyn Ahrend's letter to the San Francisco Museum of Art
Paris, 18 October 1948 - Institutional correspondence A letter from Mariano Miguel to José Ballester-Gozalvo
New York, 5 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Alfred H. Barr Jr., dated 5 June 1939
Mougins, 10 December 1970 - Personal correspondence A telegram Mariano Miguel, Picasso’s secretary, sent to Raimon Noguera to request the cancellation of the opening ceremony for the expansion of Museo Picasso
New York, 14 June 1939 - Institutional correspondence Evelyn Ahrend's letter to Alfred H. Barr Jr., dated 14 June 1939
