Prime meridian: Ferro.
Relief shown pictorially.
Shows southern Canada and northern United States.
Appears in Jefferys' General topography of North America and the West Indies. London: Printed for Robert Sayer, ... and Thomas Jefferys, 1768.
Notes (date):
This date is inferred.
Notes (citation):
LC Maps of North America, 1750-1789, 95
Phillips, 1196