Fascinating map focusing on Canada, Alaska and the Arctic regions, published in Turin.
The map was issued shortly after the publication of Vancouver's work, with Vancouver Island called the Island of Quadra or Vancouver.
The map shows the known headwaters of the Missouri, with 2 speculative courses, pre-dating Lewis & Clark.
Many Indian Tribes are shown, as are the water-courses throughout the region and a limited attempt to depict the Arctic Sea and Northwest Passage.
First time we have seen this map.