| Present Location | Tanfield Railway |
| County Location | Tyne & Wear |
| Designed For | NER |
| Build Location | York |
| Diagram number | 4?, A |
| Type | FOY |
| First Number | 1173 |
| Later Numbers | 21173, DE900270E |
| Present Number | 1173 |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4 wheel |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | Officers' Saloon from 1892 (1897?), renovated 1924 in use till P 1967 (pvte mem, Worth Valley); then Derwent Valley, then storage near Northallerton, to Tanfield 1993. Restored 1997. Tanfield ref 0089. Wheels were Mansell; replaced (by BR?) by solid disc. |
| Owner | Private consortium |
| External Structural Condition | Good |
| Internal Structural Condition | Good |
| Underframe Condition | Fair |
| External Finish | Good |
| Internal Finish | Good |
| Degree of External Originality | Some replaced/reproduced material |
| Degree of Internal Originality | Some replaced/reproduced material |
| Degree of Underframe/Running Gear Originality | Some replaced/reproduced material |
| Degree of External Authenticity | Very Good |
| Degree of Internal Authenticity | Good |
| Degree of Underframe Authenticity | Good |
| Rarity | Unique |
| Historical Importance | Very Important |
| Storage | Under Cover |
| Operating | No |
| Survey Date | 27/08/2005 |
| Surveyor | Kevin Stroud |
| Photo Date | 07/08/2022 |
| Photo by | Steve West |
| At Risk | No |
| Date Record Last Updated | 04/11/2022 |
