Paris, 13 October 1937 - Painting Weeping Woman’s Head with Handkerchief [II]. Postscript of Guernica
Paris, 17 October 1937 - Painting Weeping Woman’s Head with Handkerchief [III]. Postscript of Guernica
New York, 10 July 1939 - Institutional correspondence Evelyn Ahrend's letter to Marcelene Peterson, dated 10 July 1939