P PACY - Prairie Central Railway PAE - Peoria & Eastern Railway; Conrail PAL - Paducah & Louisville Railway PAM - Pittsburgh, Allegheny & McKees Rocks Railroad PAPX - Pullmans Inc PARX - Pan American Railway Company PARY - Prairie Trunk Railway PAS - Pan Am Southern PAUT - Pennsylvania & Atlantic Railroad; Conrail PAXX - Passenger Railcar Services Corporation PBFX - IBP, Inc.; Tyson Foods PBL - Philadelphia Belt Line Railroad PBLX - Pillsbury PBNE - Philadelphia, Bethlehem & New England Railroad PBR - Patapsco & Back Rivers Railroad PBRR - Prairie Belt Railroad PBVR - Port Bienville Railroad PC - Penn Central; Norfolk Southern PCA - Penn Central; Norfolk Southern PCB - Penn Central; Norfolk Southern PCCX - Peabody Coal Company PCEX - GE Capital Rail Services PCFX - Pacific Car & Foundry Company PCIX - Shippers Car Line; ACF Industries PCMX - Petro-Chem Marketing Company PCN - Point Comfort & Northern Railway PCRC - Panama Canal Railway Company; Kansas City Southern Railway PCSX - GE Capital Rail Services PCTX - Pioneer Cement Company of Texas PCY - Pittsburgh, Chartiers & Youghiogheny Railway PDQX - Castle Capital Corporation PE - Pacific Electric Railway; Conrail PECX - Pekin Energy Company PENX - Penford Products Company PEPX - Potomac Electric Power Company PER - Port Everglades Railway PF - Pioneer & Fayette Railroad PFE - Pacific Fruit Express; Union Pacific PFM - Power, Fluid & Metals PGDX - Procter & Gamble PGE - Pacific Great Eastern Railway; British Columbia Railway; Canadian National PGER - Pacific Great Eastern Railway; British Columbia Railway; Canadian National PGEX - Portland General Electric Company PGHX - Trinity Rail Management PGMX - Procter & Gamble PGR - Progressive Rail PHCR - Port Colborne Harbour Railway PHD - Port Huron & Detroit Railroad; Chessie System; CSX PHL - Pacific Harbor Line PI - Paducah & Illinois Railroad PICK - Pickens Railroad PINX - Pinnacle Polymers PJR - Port Jersey Railroad PLCX - Pullman Leasing Company; GE Capital Rail Services PLE - Pittsburgh & Lake Erie Railroad; New York Central Railroad; Penn Central; Conrail; CSX (after Conrail breakup) PLEX - PLM PLLU - Polynesia Line PLLZ - Polynesia Line PLMX - PLM International PLWX - GE Capital Rail Services PM - Pere Marquette Railway; Chesapeake & Ohio Railway; Chessie System; CSX PMLX - Prairie Malt PMRX - Progress Metal Reclamation Company PN - Piedmont & Northern Railway; Seaboard Coast Line; CSX PN - Pennsylvania Northeastern Railroad PNRW - Piedmont & Northern Railway (division of Patriot Rail Corporation) PNWR - Portland & Western Railroad PNWX - PNW Railcars POHC - Pittsburgh & Ohio Central Railroad POTB - Port of Tillamook Bay Railroad PPAX - PCS Phosphate Company PPCX - American Association of Private Railroad Car Owners PPGX - PPG Industries PPHX - PCS Phosphate Company PPLX - Pennsylvania Power & Light Company PPNX - PCS Phosphate Company PPRX - Phillips Petroleum Company PPU - Peoria & Pekin Union Railway PRCX - 20th Century Fox PRGX - ProGold PRL - Penn Eastern Rail Lines; East Penn Railway PRLX - Progress Rail Services Corporation PRMU - Puerto Rican Maritime Shipping Authority PROX - Procor PRR - Pennsylvania Railroad; Penn Central; Norfolk Southern PRRX - Norfolk Southern PRSL - Pennsylvania-Reading Seashore Lines; Norfolk Southern PRSX - Progress Rail Services Corporation PS - Pittsburg & Shawmut Railroad PSCX - Public Service Company of Colorado PSIX - Pacific Steel PSL - Peabody Short Line; Illinois Central Railroad; Canadian National PSPX - Phillips Petroleum Company PSR - Pittsburg & Shawmut Railroad PTM - Portland Terminal Company; Maine Central Railroad; Pan Am Railways PTEX - Canpotex PTLX - Pullman Transport Leasing; GE Capital Rail Services PW - Providence & Worcester Railroad