| Present Location | Gwili |
| County Location | Carmarthenshire |
| Designed For | TVR |
| Build Location | Cathays |
| Type | BTY |
| First Number | 220 |
| Later Numbers | 3846 |
| Present Number | 3846 |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | Body only |
| Original Underframe | No |
| Original Bogies/Wheelsets | No |
| Additional Notes | W 1926, Grounded as garden shed in Herefordshire. P 1977. On to LNER Brake van u/f 1986, restored by Bridgend School as Saloon (plus 2 compts) for disabled (BTDY) until 1990. 3846 suggested (Mountford). Into GWR livery as 3846 by 01/01/2006. 04/23: out of service, undergoing minor repairs. By 08/23: following merger of Caerphilly Railway Society, Gwili Vintage Carriage Group and Swansea Vale Railway, now owned by Welsh Railways Trust. |
| Owner | Welsh Railways Trust |
| External Structural Condition | Very Good |
| Internal Structural Condition | Good |
| Underframe Condition | Good |
| External Finish | Good |
| Internal Finish | Satisfactory |
| Degree of External Originality | Much replaced/reproduced material |
| Degree of Internal Originality | Much replaced/reproduced material |
| Degree of Underframe/Running Gear Originality | Not Applicable |
| Degree of External Authenticity | Poor |
| Degree of Internal Authenticity | Poor |
| Degree of Underframe Authenticity | Not Applicable |
| Rarity | Unique |
| Historical Importance | Some Importance |
| Storage | Secure Building |
| Operating | No |
| Survey Date | 25/08/2003 |
| Surveyor | Kevin Stroud |
| Photo Date | 12/04/2023 |
| Photo by | Steve Ehrlicher |
| At Risk | No |
| Date Record Last Updated | 04/09/2023 |
