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This late 19th century map shows the disputed border region between Siam (Thailand, Laos) and Tongkin (Vietnam), with the border claimed by Siam highlighted in yellow. Provinces along the border are labelled with the names of their local tribes.

Produced by the Intelligence Branch of the British War Office, this map shows Dutch colonial territories in maritime Southeast Asia, and their political and military divisions in Java and Madura. British and Spanish territories are also marked.