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Map of the Indian Ocean dominated by a rhumbline network—a web of interconnected lines used to help plot routes—with a compass rose at the centre. At the top there are (incomplete) drawings of people with text in Dutch, French, English and Spanish.

Hand-drawn portolan (nautical) chart, featuring a rhumbline network (the web of interconnected lines), bathymetry (sea depth), shoals and reefs, names of coastal settlements, and an elevation (side view) of a mountain at the north tip of Borneo.

This map focuses on maritime trade, with detailed coastal areas (and blank interiors), illustrations of sailing ships, a rhumbline network—a web of lines used to aid navigation—and an elaborate cartouche illustrated with traders and their wares.