| Present Location | East Lancashire |
| County Location | Greater Manchester |
| Designed For | BR |
| Build Location | Wolverton |
| Built by | BR |
| Diagram number | 407 |
| Lot number | 30477 |
| Type | DMBSO |
| First Number | 65451 |
| Later Numbers | M65451 |
| Present Number | M65451 |
| Current Livery | Greater Manchester Transport |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | 1200 v (protected third-rail) Class 504 EMU ex Manchester/Bury line. P 1991 by 504 Group. Paired with 77172 (qv). OOU at Buckley Wells and deteriorating steadily. By 7/10: to Baron Street sidings. By 10/16: under restoration at Buckley Wells. |
| Owner | Class 504 Preservation Society |
| External Structural Condition | Satisfactory |
| Internal Structural Condition | Satisfactory |
| Underframe Condition | Good |
| External Finish | Poor but Substantially Complete |
| Internal Finish | Satisfactory |
| Degree of External Originality | As built/last Passenger rebuild (BR or before) |
| Degree of Internal Originality | As built/last Passenger rebuild (BR or before) |
| Degree of Underframe/Running Gear Originality | As built/last Passenger rebuild (BR or before) |
| Degree of External Authenticity | Very Good |
| Degree of Internal Authenticity | Very Good |
| Degree of Underframe Authenticity | Very Good |
| Rarity | Unique |
| Historical Importance | Some Interest |
| Storage | Secure Open |
| Operating | No |
| Survey Date | 29/08/2006 |
| Surveyor | Kevin Stroud |
| Photo Date | 29/10/2016 |
| Photo by | Paul Lambert |
| At Risk | No |
| Date Record Last Updated | 14/12/2018 |
