Copper-engraved map, hand-colored in outline (likely later). 39.2x43.7 cm (15½x17¼").
Map centered on the North Pole, with much detail, showing the tracks of navigators in their numerous attempts to find a northern passage to Asia. Much of Greenland and the western part of North America remain undiscovered. Panels of text at the bottom describe the explorations and probabilities of finding a Northwest Passage via Hudson Bay, with particular interest in the outcome of the 1746 Arthur Dobbs expedition.
