County map of Pennsylvania, New Jersey, Maryland and Delaware ; City of Philadelphia [inset]; City of Baltimore [inset].
from Mitchell's new general atlas, containing maps of the various countries of the world, plans of cities, etc., embraced in fifty-three quarto maps., forming a series of eighty four maps and plans, together with valuable statistical tables.
North America: sheet VII, Pennsylvania, New Jersey, Maryland, Delaware, Columbia and part of Virginia / published under the superintendence of the Society for the Diffusion of Useful Knowledge; J. & C. Walker, sculp.
from Parts C. Walker,
Map of Virginia, Maryland and Delaware exhibiting the post offices, post roads, canals, rail roads &c. / by David H. Burr, (Late topographer to the Post Office,) Geographer to the House of Representatives of the U.S.
from Parts David H. Burr,