Rare two-sheet blue-back sea chart of the Atlantic and Eastern part of North America., published by Gerard Van Keulen. The map extends from the latitude of Newfoundland and the English Channel in the north to the Equator in the south.In North America, most of the Great Lakes are shown and a large lake (Apalache Lac) in South Carolina. Florida is presented in a triangular shape.Florida is shown in a triangular model, with large islands forming the tip and numerous soundings along the coast. The ...