Shows wards, built-up areas, and major buildings. Also covers Georgetown. "Entered according to act of Congress ... 1850, by Thomas, Cowperthwait &amp; Co. ... Eastern District of Pennsylvania." Includes note, index to points of interest, and Capitol floorplan. LC copy torn at edges and fold-lined. Available also through the Library of Congress Web site as a raster image. DCP
Thomas, Cowperthwait &amp; Co.
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