ELD4964716 French colonial empire: colonies d\'Asie, le protectorate du Tonkin (vietnam du Nord) (French possessions and colonies: french asia, protectorate of Tonkin (northern vietnam)) Chromolithography of the late 19th century private collection; (add.info.: French colonial empire: colonies d\'Asie, le protectorate du Tonkin (vietnam du Nord) (French possessions and colonies: french asia, protectorate of Tonkin (northern vietnam)) Chromolithography of the late 19th century private collection); Photo by The Holbarn Archive.