Keywords: 1937 original railroads in Pittsburgh.jpg November 1937 map of the original alignments of the railroads in Pittsburgh from 1855 that later became part of the Pennsylvania Railroad From a 1948 PRR Board of Directors Inspection of Physical Property scanned on http //www railsandtrails com/Maps/PRR-Pittsburgh/default htm and converted from 300 dpi djvu Relevant searches through http //www scils rutgers edu/~lesk/copyrenew html turn up nothing and there is no copyright information so public domain is very likely pd-old Maps of the Pennsylvania Railroad Old railroad maps of the United States Maps of Pittsburgh |