| Owner: | Canadian National Railways |
| Type: | Box Car |
| AAR Class: | PB: A car constructed for passenger train service and equipped to handle baggage, express, mail, merchandise or similar products. |
| AAR Type: | M510 |
| Detail Info: | Misc Cars |
| CN Class: | -57-A |
| User Notes: | Double deck Autobox/Car-Go-Rail service, CC&F 1959, ex-15506 |