HISTORY - AUBERT Marie Jacques Charles (1848 - 1915) - Typed letter signed

He graduated from the Ecole Navale in 1866. He was awarded the Légion d'honneur in 1881. He served all over the world and was promoted to Vice-Admiral on 23.05.1907.
Typed letter signed and dated Paris, 20.12.1912 to Paul Langer Senior:"… l'utilisation de bâtiments sous-marins comme mouilleurs de mines…".; copy of Paul Langer Senior's letter to the Minister.