Page, Thomas & William, Mount. A Chart of Grain Ivory & Quaqua Coasts in Guinea. London, 18th c. American Paintings Views and Exploration Humboldt’s map broke new ground

Humboldt’s map broke new ground in the physical mapping of modern-day California

and their ink library stamps on thepreliminaries and verso of each plate

The boundary between New York and New Jersey is shown with the notation "partition line ordered in 1769

The top inset offers a larger-scale look at the lands of Northeast China

reissued on thinner paper

Page, Thomas & William, Mount. A Chart of Grain Ivory & Quaqua Coasts in Guinea. London, 18th c. American Paintings Views and Exploration Humboldt’s map broke new groundThomas Page & Mount William A Chart of Grain Ivory & Quaqua Coasts in Guinea. From Cape Saint Anne to Teen Pequene London, c. 1715 1761 22 1 2" x 18"