The rare 14th-century portolan chart is worth $7.5 million. Robert Gauthier / Los Angeles Times / Getty Images Last fall, Christie’s auctioned off a “highly unusual” nautical map as part of an estate ...
The person who made this document — the first so-called portolan chart, from the Italian word portolano, meaning “a collection of sailing directions” — spawned a new era of mapmaking and oceanic ...
THE Royal Geographical Society has had placed at its disposal a fund for the reproduction of a series of selected manuscript maps, and the first issue of this series is the reproduction of the ...
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