An early 1890s map of the Philadelphia, Wilmington &amp; Baltimore Railroad and other lines between Norfolk and Philadelphia. The presence of the Baltimore &amp; Lehigh Railroad and the Baltimore &amp; Eastern Shore Railroad under those exact names dates the map to between 1891 and 1894.
Allen, Lane &amp; Scott
<a rel="nofollow" class="external text" href="http://archives.blogs.delaware.gov/files/2010/12/Railroad-System-Map.jpg">Scanned map from Delaware State Archives</a>