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This map features a rhumbline network, a web of lines to help plot routes and aid navigation. Where the lines meet, there is a compass rose with an arrow pointing to north.

This mid-18th century map of Asia features a drawing of religious imagery: Asian people are seen making offerings to two figures, including the Greek god Poseidon (or the Roman god Neptune), and kneeling as cherubs descend from the sky.

Unusually, north is located to the left of this map of East Asia, rather than the top. The text notes that shallows and reefs are marked, and that the map is based on the explorations of Portuguese ships. Illustrations include sea monsters and ships.