1770. Scale approximately 1:80,000; 1 map; 44 x 53 cm Pennsylvania--Maps--Early works to 1800.
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1796. Map showing the states of Maryland and Delaware, with parts of Pennsylvania. 28 x 21.7 cm; 1 images; color. Denison, J.
1799. Map showing the states of Maryland and Delaware, 1799. 25.9 x 21.2 cm; 1 images; color. Anderson, John.
1830. Color map of the states Maryland, Delaware, and Virginia, 1830. Map includes New Jersey and most of New York. There is handwriting on both sides of... H. & F.J. Huntington (Firm).
1846. Mitchell, S. Augustus (Samuel Augustus), 1792-1868. Relief shown by hachures. Prime meridian: Washington. Insets: Baltimore -- Steamboat routes. "Entered according to Act of Congress in the year 1... S.A. Mitchell (Philadelphia).
1900. Mason, Charles, 1728-1786. Shows the northern part of the Mason and Dixon line.; Originally published with: A plan of the west line, or parallel of latitude, which is the bou... Maryland Historical Society (Baltimore, Md).
1925. National Geographic Society (U.S.). Map Department. Relief shown by gradient tints and hachures.; Includes 3 inset maps.; Inset maps: Washington and vicinity -- Baltimore and vicinity --Wilmington an... National Geographic Society (Washington, D.C).
1927. United States. Bureau of Public Roads. Base map from U.S. Geological Survey state map.; "Data corrected to Dec 31, 1927." 46 x 71 centimeters, on sheet 55 x 79 centimeters Scale 1:500,00... U.S. Geological Survey (Washington, D.C).
1935. Cable and pipeline areas denoted.
1939. United States. Department of the Interior. Map created from a United States Department of the Interior geological survey. Topography was surveyed by R. H. Runyan, 1939. Map consists mainly o...