| NOTES | B | BM | BD | C | D | E | HP | M | MP | MPB | MB | MBM | MPBM | T | O | P | PB | PBM | PC | PDB | PLB | PL | POC | POS | PP | PS | R | GAS | Z | Trucks |
| Class: | Description: | Tracing #: | View: |
| MA | Postal Car | - | side/end |
| MB | Postal Car | N-262-A | side/end |
| MB | Postal Car | N-263-C | floorplan |
| MB | Postal Car | - | side/end |
| MC | Postal Car | - | side/end |
| MD | Postal Car | - | side/end |
| ME | Postal Car | - | side/end |
| MG | Postal Car | - | side/end |
| MH | Postal Letter Car (no vestibules) | - | side/end |
| MH | Postal Car (having six stringers & narrow vestibules) | - | side/end |
| MH;MI | Postal Car | N-264-A | side/end |
| MH | Postal Car | N-265-B | floorplan |
| MI | Postal Car | N-266-C | floorplan |
| MI | Postal Car (having six stringers & storm doors) | - | side/end |
| MI | Postal Car (having eight stringers & narrow vestibules) | - | side/end |
| MI | Postal Paper Car | - | side/end |
| MK | Postal Car | - | side/end |
| MK | Postal Car (with narrow vestibules) | - | side/end |
| ML | Postal Car | N-155-B | side/end |
| ML | Postal Car | N-156-B | floorplan |
| ML | Postal Storage Car | - | side/end |
| MM | Universal Postal Car | N-191-C | side/end |
| MM | Universal Postal Car | N-192-D | floorplan |
| MM | Postal Car | - | side/end |
| MX | Postal Car | N-190-B | side/end |
| MX | Postal Car | N-189-D | side/end |
| Proposed | Universal Postal Car | N-213-A | floorplan |
| Proposed | Universal Postal Car | N-216-A | floorplan |
| Mxx | RPO (not classed, crossed off) | - | side/end |
| M70 | RPO | - | side/end |
| M70 | RPO | - | floorplan |
| M70a | RPO | - | side/end |
| M70a | RPO | - | floorplan |
| MS70 | Mail Storage Car (not built) | - | side/end |
| MS70 | Mail Storage Car (not built) | - | floorplan |
| M70b | RPO (early) | E-408791-B,A | side/end |
| M70b | RPO (early) | E-408791-B,A | floorplan |
| M70b | RPO (late) | E-447735-A | side/end |
| M70b | RPO (late) | E-447735-A | floorplan |
| M70b | RPO (w/ baggage comp) | E-447735-A | side/end |
| M70ba | RPO | E-447735-C,B,A | side/end |
| M70ba | RPO | E-447735-D,C,B | floorplan |
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Do you have any PRR diagrams that are not on this site? If so please e-mail me so we can arrange to scan and add them to the site! Go to the PRR freight car index! ©1998-2005 Robert Schoenberg - robs@railfan.net |