| Present Location | Midland Railway Centre |
| County Location | Derbyshire |
| Designed For | BR |
| Built by | Cravens |
| Diagram number | 711 |
| Lot number | 30224 |
| Type | BG |
| First Number | 81020 |
| Later Numbers | 84020 |
| Present Number | M84020 |
| Current Livery | BR Maroon |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | P 1991. Steam heat added. Used in regular running sets, also as Santa Grotto/Party Coach. 09/21: confirmed still at Midland Railway Centre. |
| Owner | Midland Railway Trust |
| External Structural Condition | Satisfactory |
| Internal Structural Condition | Satisfactory |
| Underframe Condition | Good |
| External Finish | Satisfactory |
| Internal Finish | Satisfactory |
| Degree of External Originality | As built/last Passenger rebuild (BR or before) |
| Degree of Internal Originality | Conversion/rebuild/reproduction |
| Degree of Underframe/Running Gear Originality | As built/last Passenger rebuild (BR or before) |
| Degree of External Authenticity | Good |
| Degree of Internal Authenticity | Poor |
| Degree of Underframe Authenticity | Good |
| Rarity | Many |
| Historical Importance | Some Interest |
| Storage | Secure Open |
| Operating | Yes |
| Survey Date | 27/08/2006 |
| Surveyor | Kevin Stroud |
| Photo Date | 19/03/2017 |
| Photo by | Steve West |
| At Risk | No |
| Date Record Last Updated | 14/12/2021 |
