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An 18th century map of the Netherlands, with an inset map of Southeast Asia highlighting the trade of the Dutch and their colonies. Within the inset is a drawing of the port of Batavia (Jakarta) with sailing ships in the harbour and mountains behind.

Colourful hand-drawn portolan (nautical) navigation chart, featuring bathymetry (sea depth), shoals and reefs, and anchor points. The coasts have pictorial representations of landmarks (trees, houses, mountains). Orientated with south at the top.

Hand-drawn portolan (nautical) chart, featuring a rhumbline network (the web of interconnected lines), bathymetry (sea depth), shoals and reefs, elevations (side views of landmark mountains), and names of coastal settlements, all to aid navigation.