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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.

This late 19th century map of Southeast Asia shows the best maritime routes around the region, according to the time of year. There are also inset maps highlighting the rivers and southern islands of Singapore, and the sea depth around Labuan Island.

This late 19th century map of Southeast Asia shows the best maritime routes around the region, according to the time of year. There are also inset maps highlighting the rivers and southern islands of Singapore, and the sea depth around Labuan Island.

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.

This late 19th century map of Southeast Asia shows the best maritime routes around the region, according to the time of year. There is also an inset map highlighting the rivers and southern islands of Singapore.

On this map of Asia, the South China Sea is labelled ‘Malayan Sea’. Small islands, shoals and reefs are shown. A label in Cochin China (Vietnam) reads ‘mountains inhabited by the uncivilized people called Kemoys’.

On this map of Asia, the South China Sea is labelled ‘Malayan Sea’. Small islands, shoals and reefs are shown. A label in Cochin China (Vietnam) reads ‘mountains inhabited by the uncivilized people called Kemoys’.

This late 19th century map of Southeast Asia shows the best maritime routes around the region, according to the time of year. There is also an inset map highlighting the rivers and southern islands of Singapore.

Southeast Asia is on the last sheet of this map of Asia. The South China Sea is labelled ‘Malayan Sea’. Small islands, shoals and reefs are shown. A label in Cochin China (Vietnam) reads ‘mountains inhabited by the uncivilized people called Kemoys’.

Maritime routes had to be adjusted in response to the changing monsoon seasons, as is seen on this late 18th century map of the Indian Ocean. Drawings of the heads of children blowing—called ‘wind-heads’—are used to indicate wind direction.

This mid-18th century map of Southeast Asia includes written notes on goods produced and traded, geographical features, and wild animals found in each part of the region.

Map dedicated to William Cowper, whose coat of arms sits atop the cartouche. It features two horses holding a crest with three martlets (mythical birds used in heraldry). The cartouche also features Asian traders. Monsoons are marked on the map.