The library Company of Philadelphia has a collection of Phots's for the Philadelphia division on line. Not sure if posted here before but some interesting rare shots of stations long gone from the line.
You can purchase individual photos from the library company for a small fee.
http://www.lcpgraphics.org/inventories/B&ORailroad/
Bridges and Buildings
Philadelphia Division
Baltimore & Ohio Railroad Photograph Album
You can purchase individual photos from the library company for a small fee.
http://www.lcpgraphics.org/inventories/B&ORailroad/
Bridges and Buildings
Philadelphia Division
Baltimore & Ohio Railroad Photograph Album