| Present Location | Pontypool Blaenavon |
| Designed For | BR |
| Built by | Metro Cammell |
| Diagram number | 171 |
| Lot number | 30132 |
| Type | BCK |
| First Number | 21034 |
| Later Numbers | M21034 99781 |
| Present Number | 21034 |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | Leased by MNLPS 1985-8. P 1989 on WSR. By 4/00 to ESR for overhaul: didn't happen. Blaenavon 1/05. Interior bought for 21249 restoration (qv). Not in good order - but by 2/08 being restored back to Carmine & Cream but with a 1980s blue interior. |
| Owner | Pontypool & Blaenavon Railway |
| External Structural Condition | Poor but Substantially Complete |
| Internal Structural Condition | Poor but Substantially Complete |
| Underframe Condition | Satisfactory |
| External Finish | Poor but Substantially Complete |
| Internal Finish | Poor but Substantially Complete |
| Degree of External Originality | As built/last Passenger rebuild (BR or before) |
| Degree of Internal Originality | Some replaced/reproduced material |
| Degree of Underframe/Running Gear Originality | As built/last Passenger rebuild (BR or before) |
| Degree of External Authenticity | Good |
| Degree of Internal Authenticity | Good |
| Degree of Underframe Authenticity | Good |
| Rarity | Many |
| Historical Importance | some Interest, Modest Consequence |
| Storage | Open |
| Operating | No |
| Survey Date | 19/05/2005 |
| Surveyor | David Wigley |
| Photo Date | 10/04/2004 |
| Photo by | Cobb |
| At Risk | No |
| Date Record Last Updated | 13/08/2009 |