| Present Location | Pontypool Blaenavon |
| Designed For | BR |
| Build Location | York |
| Built by | BR |
| Diagram number | 93 |
| Lot number | 30375 |
| Type | TSO |
| First Number | 4654 |
| Later Numbers | Sc4256, 99606, 4256 |
| Present Number | 4256 |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | P 1972, on DVR till 1985 (still lettered DVR!). Severe corrosion problems - doors, under windows, end posts. Intended to put under cover for Spring/Summer 2008 to prevent further deterioration. |
| Owner | Private |
| External Structural Condition | Poor but Substantially Complete |
| Internal Structural Condition | Fair |
| Underframe Condition | Satisfactory |
| External Finish | Poor and Incomplete |
| Internal Finish | Fair |
| 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 | Many |
| Historical Importance | no Immediate Importance/Not Applicable |
| Storage | Open |
| Operating | No |
| Survey Date | 25/07/1999 |
| Surveyor | Michael Cope |
| Photo Date | 01/06/2004 |
| Photo by | Byron Chamberlain |
| At Risk | No |
| Date Record Last Updated | 13/08/2009 |