| Present Location | Cambrian Heritage Railways, Llynclys |
| County Location | Shropshire |
| Designed For | BR |
| Built by | Metro Cammell |
| Diagram number | 523 |
| Lot number | 30467 |
| Type | DMBS |
| First Number | 51205 |
| 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 101. Dgm DQ202. Was in Unit 101676 with 51803 (qv). P 04/05. To Cambrian Heritage Railway, Llynclys 04/05 as main running pair with 51512 (q.v.). 08/06: exterior and interior completely renovated. 09/19: refurbishment work begun. |
| Owner | Cambrian Railways Trust |
| External Structural Condition | Very Good |
| Internal Structural Condition | Very Good |
| Underframe Condition | Good |
| External Finish | Very 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 | Several |
| Historical Importance | Some Interest |
| Storage | Secure Open |
| Operating | No |
| Survey Date | 26/08/2006 |
| Surveyor | Kevin Stroud |
| Photo Date | 08/09/2014 |
| Photo by | Aaron Browning |
| At Risk | No |
| Date Record Last Updated | 11/11/2023 |
