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This colourful hand-drawn portolan (nautical) chart was designed to aid navigation. It features a rhumbline network (the web of interconnected lines), bathymetry (sea depth), shoals and reefs, anchor points and written notes.

This map of India and Southeast Asia—or ‘Indiae Orientalis [East Indies]’ as it was called at the time—was published in a book documenting the travels of the German scholar and geographer Adam Olearius (1599–1671).