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This late 18th century map features a number of labels describing the local populations, including the Kemoys ('Savage People') of the mountains of Cokin China (Vietnam), the Biayos of Borneo, and the 'Wild People' of the mountains of Pegu (Myanmar).

Nautical charts, like this late 18th century example of the north-west coast of Borneo, were designed to help ships navigate. The numbers marked along the coastline and sea routes indicate the depth of the sea (bathymetry).

Map of the Gaspar Strait, off the east coast of Sumatra. The web of lines is a rhumbline network, numbers indicate sea depth (bathymetry), and there are side views of islands (elevations), all to aid navigation. Five 18th century routes are marked.

Navigation chart of the east coast of mainland Southeast Asia, from Cambodia to China. Islands, shoals and reefs are marked, along with bathymetry (sea depth). There are seven side views of islands (elevations) to use as landmarks.

A map to aid navigation around the Touranne Bay (Bay of Turon, location of modern city of Da Nang, Vietnam). The web of lines is a rhumbline network, and bathymetry (sea depth), anchor points and two elevation views of the coasts are shown.

There is a port at the south of this map of the Côn Đảo archipelago (Vietnam), and notes giving details such as a suitable location to careen ships (turning a ship on its side for cleaning or repair). A ruined English fort is also marked.

Navigation chart of the Sunda Strait, showing bathymetry (sea depth), shoals and reefs, landmarks, and a rhumbline network. Notes record good anchorages, sources of water and supplies etc. Inset map of the Zutphen Islands off the coast of Sumatra.