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Map showing the French protectorate territories of mainland Southeast Asia: Annam, Tongking and French Cochin China (modern Vietnam) and Cambodia. Some parts of Siam (Thailand) and Laos are also shown.

This map of the border region between China, Birma (Myanmar), Siam (Thailand and Laos) and Anam (Vietnam) is marked with the routes of five expeditions of the region from 1837 to 1868. Locations of Roman Catholic missionaries are also shown.