Tarjeta a Artemia G. de Falcón, 21/8/1926
"Dedalus" o la adolescencia de James Joyce
Miguel Arzibachev
Sergio Essenin
Gomez Carrillo
Tres libros de Panait Istrati sobre la U.R.S.S.
La aventura de Tristán Marof [Recorte de prensa]
Panait Istrati
Carta a Bertha Molina (Ruth), 7/5/1916
Carta a Bertha Molina (Ruth), 7/6/1916
Carta a Bertha Molina (Ruth), 8/6/1916
Carta a Bertha Molina (Ruth), 13/7/1916
Carta a Bertha Molina (Ruth), 31/8/1916
Carta a Bertha Molina (Ruth), 21/11/1916
Carta a Bertha Molina (Ruth), 30/6/1920
Carta a Bertha Molina (Ruth), 16/10/1920
Tarjeta Postal a Ricardo Martínez de la Torre, 6/7/1920
Carta a Waldo Frank, 10/12/1928
Carta a Ricardo Vegas García, 20/1/1925
Carta a Bertha Molina (Ruth), [1916]
Carta a Bertha Molina (Ruth), 4/2/1916
Carta a Bertha Molina (Ruth), 2/4/1916
Carta a Bertha Molina (Ruth), 11/4/1916
Carta a Bertha Molina (Ruth), 1/5/1916
Carta a Ricardo Vegas García, 12/11/[1924]
Carta a Ricardo Vegas García, [9/1924]
Carta a Ricardo Vegas García, [5/1925]
Carta a Ricardo Vegas García, [9/1925]
Carta a Ricardo Vegas García, [3/1926]
Carta a Ricardo Vegas García, 18/11/1924
Carta a Ricardo Vegas García, 22/12/1924
Carta a Ricardo Vegas García, 23/3/1925
Carta a Emilio Roig de Leuchsenring, 24/10/1926
George Brandes
Stefan Zweig, apologista e interprete de Tolstoy y Dostoyevski
Georges Clemenceau
Farinacci
El sumo cicerone del foro romano
Edwin Elmore
James Joyce
Carta a Samuel Glusberg, 10/1/1928
Carta a Bertha Molina (Ruth), 9/3/1916
Carta a Bertha Molina (Ruth), 10/4/1916
Carta a Bertha Molina (Ruth), 26/4/1916
Carta a Bertha Molina (Ruth), 14/5/1916
Carta a Bertha Molina (Ruth), 20/5/1916
Carta a Bertha Molina (Ruth), 1-8-1916
Carta a Bertha Molina (Ruth), 11/8/1916
Carta a Bertha Molina (Ruth),18/10/1919
Carta a Samuel Glusberg, 18/12/1929