Conrail 1991 Philadelphia Div Volume 4 ZTS Zone-Track-Spot Maps, 367 PDF Pages on DVD. I have hundreds of railroad items not listed yet. If you don't see what you are looking for listed, such as, Track Charts-Equipment Diagrams-Standard Plans-Timetables etc.  Please contact me and I will check to see if I have what you want. I will then list the item(s) on eBay for you and/or start a want list for you.