Delaware & Maryland Washington D.C. Chesapeake Bay 1866 Johnson mapJohnson's Delaware and Maryland. (North America, United States, Maryland, Delaware, Washington D. C. Chesapeake Bay, Potomac River, Delaware Bay). Issued 1866, New York by A. J. Johnson. Large detailed inset of District of Columbia with a 12 line key. Uncommon mid 19th century lithographed map, with original hand color. Nice looking example, visible light old damp stain at bottom right edge, pleasing age patina, light soiling and small scattered