Wholesale Nautical Planisphere 1504

This nautical map of the world was produced by the Genoese cartographer Nicolo di Caverio based on Portuguese documents. The map can be dated to 1506, as it contains no reference to any discovery made after this year. The map has three scales of lengths at the top. On the left border is a scale of latitudes from 55° south to 70° north. A system of rhumbs of 90 centimeters (cm) in diameter is centered on Africa, with 16 secondary centers, supplemented by another concentric system of 180 cm in diameter, of which only three centers appear on each side. The map shows 18 wind roses with 16 branches bearing a cross pointing east. The two centers of rhumbs of the complementary system located on the far right and the far left have a sun in the east instead of the wind rose, and a crescent moon in the west.