- FondoJCM-F-03 - Fondo José Carlos Mariátegui
- Parte05 - Correspondencia JCM
- Serie5.1 - Correspondencia Emitida
- 24 in più...
- 1916-08-31 - Carta a Bertha Molina (Ruth), 31/8/1916
- 1916-09-17 - Carta a Bertha Molina (Ruth), 17/9/1916
- 1916-10-11 - Carta a Bertha Molina (Ruth), 11/10/1916
- 1916-11-21 - Carta a Bertha Molina (Ruth), 21/11/1916
- 1918-06-25 - Carta a Pedro Ruíz Bravo, 25/6/1918
- 1919-07-04 - Carta a Ricardo Vegas García y Manuel Seoane, 4/7/1919
- 1919-10-16 - Tarjeta Postal a Guillermina Mariátegui de Cavero, 16/10/1919
- 1919-10-16 - Tarjeta Postal a Modesto Antonio Cavero
- 1919-10-18 - Carta a Bertha Molina (Ruth),18/10/1919
- 176 in più...