Mark Tideman (fl. 1790–1815). A Chart of New York Harbour. 1812 10_23_blast Champlain depicts a huge sea

Champlain depicts a huge sea to the north that forms part of the hypothetical Northwest Passage

Two sheets joined (16 x 42 5/8 inches to the neatline

In Great Flower Painters

by descent through the Dukes of Leuchtenberg

Mark Tideman (fl. 1790–1815). A Chart of New York Harbour. 1812 10_23_blast Champlain depicts a huge seaMark Tideman (fl. 17901815)A Chart of New York Harbour with the Banks, Soundings and Sailing marksLondon, circa 1812Copperplate engravingSheet size: 29 x 21 inches This crisp and technically precise early 19th century sea chart depicts New York Harbor and its approaches, rendered by British hydrographer J. F. W. Tideman. It reflects the increasing sophistication of British naval cartography during the Napoleonic era and is a continuation of the