This double hemisphere world map is derived from the 1587 world map by Rumold Mercator and set within a similar strapwork background with an armillary sphere and compass rose tucked between the hemispheres. The North Pole is depicted as a landmass surrounding a sea from which four rivers radiate and there is a well depicted Northwest Passage. In the Antarctic is the imaginary southern continent and there is a bulge in the southwest coast of South America. The map was engraved by Girolamo Porro for Giovanni Magini and included in several of Magini's works. The map is finely engraved with stippled sea area, text in Latin below and blank verso.

References: Shirley #202.

Condition: A

Remnants of hinge tape on verso.