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A series of four maps of the Indian Ocean—one for each quarter of the calendar year—showing the direction and intensity of the winds, including around the seas of Southeast Asia. There are extensive explanatory notes.

To aid navigation, this map shows small islands, shoals and reefs, maritime routes for use during monsoons or at particular times of the year, bathymetry (sea depth), past explorers’ routes, shipwrecks and text about monsoons, typhoons and currents.

French text on the reverse of this map describes the religion, languages, crops, trade etc. of Aracam and Pegu (Myanmar), Siam (Thailand), Cambaja (Cambodia). The map is dedicated to the Dutch merchant Christophoro Thisio.

As was common in this era, this map mistakenly shows the bottom of Peninsula Malaya as a separate island. The map also features illustrations of ships and a sea monster. Text on the reverse describes the people, crops, geography of the region.

As was common in this era, this map mistakenly shows the bottom of Peninsula Malaya as a separate island. The map also features illustrations of ships and a sea monster. Latin text on the reverse describes the people, crops, geography of the region.