| Present Location | Epping Ongar Railway |
| County Location | Essex |
| Designed For | BR |
| Built by | Pressed Steel |
| Diagram number | 513 |
| Lot number | 30519 |
| Type | DTS |
| First Number | 56287 |
| Later Numbers | 54287 |
| Present Number | W56287 |
| Current Livery | BR multiple unit green livery |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | Class 121 Augmentation Trailer. Latterly Network South East, last allocated Reading. Purchased by Mangapps Farm from Old Oak Common 1993. To Colne Valley early 2004 in exchange for Pressed Steel Class 117 51381. By 06/17: to Epping and Ongar Railway. |
| Owner | Pressed Steel Heritage Limited |
| External Structural Condition | Good |
| Internal Structural Condition | Good |
| Underframe Condition | Good |
| External Finish | Good |
| Internal Finish | Good |
| 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 | Few |
| Historical Importance | Some Importance |
| Storage | Secure Open |
| Operating | Yes |
| Survey Date | 29/08/2009 |
| Surveyor | Kevin Stroud |
| Photo Date | 28/04/2018 |
| Photo by | Steve West |
| At Risk | No |
| Date Record Last Updated | 21/05/2018 |
