• Letter to Prince Camillo Francesco Massimo on the occasion of the third centenary of Canonization of Saint Philip Neri (March 8, 1922)
  [Italian]

• Letter to the Most Reverend Father Giosuč Signori, Archbishop of Genoa (April 7, 1922)
  [Italian]

• Letter to Father Agostino Gemelli, founder of the Catholic University of the Sacred Heart in Milan (April 22, 1922)
  [Italian]

• Letter Quod Sancti to the Bishop of Annecy, Fiorenzo Du Bois De La Villerabel (August 20, 1923)
  [Italian]

• Chirograph to Cardinal Pietro Gasparri, Secretary of State, for the reform of ecclesiastical legislation (February 18, 1926)
  [Italian]

• Chirograph to Cardinal Pietro Gasparri, Secretary of State, for the signing of the Lateran Pact (May 30, 1929)
  [Italian]

• Letter to Cardinal Pietro Gasparri, Secretary of State, on the ratification of the Lateran Pact (June 7, 1929)
  [Italian]

• Chirograph Ci Commuovono to Cardinal Basilio Pompili, Vicar of Rome, for the violence in Russia (February 2, 1930)
  [Italian]

1931

• Chirograph to Cardinal Alfredo Ildefonso Schuster, Archbishop of Milan, on Italian Catholic Action (April 26, 1931)
  [Italian]

• Letter of Decree Geminata Laetitia for the canonization of Father John Bosco (April, 1934)
  [Italian]

• Letter to Cardinal Sebastiano Leme de Silveira Cintra, Archbishop of San Sebastian of Rio De Janeiro, on the lack of priests in Brazil (October 27, 1935)
  [Italian]