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Map highlighting areas of eastern Siam (Thailand) claimed by France. Notes describe Siam’s geography, government, population, military and trade (rice, teak, pepper, bullocks, fish, hides, tin, cardamom, tin), including trading partners by tonnage.

A series of four maps of the Indian Ocean—one for each quarter of the calendar year—showing the direction and intensity of the winds, including around the seas of Southeast Asia. There are extensive explanatory notes.

This detailed map of the Dutch East Indies in the mid-19th century contains a great deal of information: topographical details, settlements and administrative areas, roads, railways and maritime routes, telegraph lines, inset maps etc.

Chart of the Indian Ocean, showing climate and weather-related data, including around the seas and straits of Southeast Asia where trade routes are marked, along with monsoon and typhoon regions, and currents during the different monsoon seasons.

The colonial possessions of Britain, the Netherlands, Spain, Portugal and Denmark are shown on this mid-19th century map of Southeast Asia. There are inset maps of Penang Island and Singapore, and text describing the region’s colonial history.