If you are looking for reference drawings on Standard Gauge Rolling Stock, this seems to be a good example
http://prr.railfan.net/diagrams/PRRdiagrams.html?sel=&sz=sm&fr=
If you are looking for reference drawings on Standard Gauge Rolling Stock, this seems to be a good example
http://prr.railfan.net/diagrams/PRRdiagrams.html?sel=&sz=sm&fr=