| Present Location | Embsay |
| County Location | North Yorkshire |
| Designed For | LMS |
| Type | SPEC |
| First Number | 45053 |
| Later Numbers | ADM45053 BRAKE UNIT NO 1 |
| Present Number | 45053 |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | Mobile Test Unit. 4O. Was this a conversion? Uses EMU motor bogies. Was one of three used to load test steam locos - now the only survivor.
By 05/11 to Embsay & Bolton Abbey - plan to form an LMS set (with MR 238, 241 & LMS5757) |
| Owner | National Railway Museum |
| External Structural Condition | Poor but Substantially Complete |
| Internal Structural Condition | Fair |
| Underframe Condition | Fair |
| External Finish | Poor and Incomplete |
| Internal Finish | Poor but Substantially Complete |
| Degree of External Originality | As left Departmental service |
| Degree of Internal Originality | As left Departmental service |
| Degree of Underframe/Running Gear Originality | As left Departmental service |
| Degree of External Authenticity | Very Good |
| Degree of Internal Authenticity | Very Good |
| Degree of Underframe Authenticity | Very Good |
| Rarity | Unique |
| Historical Importance | Some Importance |
| Storage | Secure Open |
| Operating | No |
| Survey Date | 22/08/1998 |
| Surveyor | Ian Smith |
| Photo Date | 04/09/2016 |
| Photo by | Steve West |
| At Risk | No |
| Date Record Last Updated | 27/09/2016 |
