| Present Location | Embsay |
| Designed For | BR |
| Build Location | York |
| Built by | BR |
| Diagram number | 93 |
| Lot number | 30375 |
| Type | TSO |
| First Number | 4666 |
| Later Numbers | W4666 YDR 7 |
| Present Number | W4666 YDR 7 |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | P 1989. Part of operational fleet. BR Maroon livery. |
| Owner | Yorkshire Dales Railway Museum Trust |
| External Structural Condition | Good |
| Internal Structural Condition | Good |
| Underframe Condition | Good |
| External Finish | Satisfactory |
| 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 | Many |
| Historical Importance | some Interest, Modest Consequence |
| Storage | Open |
| Operating | Yes |
| Survey Date | 23/08/2005 |
| Surveyor | Kevin Stroud |
| Photo Date | 31/07/2007 |
| Photo by | Byron Chamberlain |
| At Risk | No |