Paris, 10 February 1955 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Alfred H. Barr Jr., dated 10 February 1955
Paris, 14 June 1955 - Personal correspondence Daniel-Henry Kahnweiler's letter to Pablo Picasso, dated 14 June 1955
Mainz, 20 July 1955 - Institutional correspondence A letter from J. Mougin to Jacques Guerin, dated 20 July 1955
Paris, 11 October 1955 - Institutional correspondence Daniel-Henry Kahnweiler's letter to Jacques Guerin
Mainz, 18 October 1955 - Institutional correspondence J. Mougin's letter to Jacques Guerin, dated 18 October 1955