File:Carte d'État-major de la France, Feuille Chaumont N.O.jpg
![File:Carte d'État-major de la France, Feuille Chaumont N.O.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/3/35/Carte_d%27%C3%89tat-major_de_la_France%2C_Feuille_Chaumont_N.O.jpg/800px-Carte_d%27%C3%89tat-major_de_la_France%2C_Feuille_Chaumont_N.O.jpg?20190928090757)
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