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Sketch of the Straits of Gaspar

event1794

location_on-

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.

A new chart containing the southwest part of the China Sea comprised between the Malaya Peninsula, Straits of Singapore &c. the Straits of Banca, Gaspar and Billiton and the Isle of Borneo

event1794

location_onIndonesia

A map of the China Sea between Malaya, Sumatra and Borneo. The numbers indicate sea depth (bathymetry), and there are drawings of the side views of some of the islands (elevations), both used to aid navigation. Some maritime routes are also marked.

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