Tokyo, 20 November 1962 - Institutional correspondence Akira Jin's letter to Pablo Picasso, dated 20 November 1962
Paris, 14 November 1964 - Institutional correspondence A letter from Le Groupment des Anciens Etudiantes de l'Université et des Écoles Supérieures de Budapest, etudiant de France [sic], to Pablo Picasso
Paris, 17 November 1959 - Institutional correspondence A letter from the Groupe d'étudiants d'espagnol to Pablo Picasso
Tokyo, 1 April 1963 - Institutional correspondence Akira Jin's letter to Pablo Picasso, dated 1 April 1963