| Present Location | Quainton |
| County Location | Buckinghamshire |
| Designed For | GNR |
| Build Location | Doncaster |
| Built by | GNR |
| Type | TZ |
| First Number | 836(?) |
| Present Number | None |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 6 wheel |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | Acquired privately ex BR Consett pre 1977, loaned to Knebworth 1982-7 to house relics. 836 may be a later number. Tanfield ref 0064. 08/05: new roof sheeting applied, but little else done to protect from further deterioration. 06/24: moved from Tanfield Railway to Quainton Road (with the help of a fund raising effort by the Great Northern Railway Society members): now under cover to dry out before stripping down; restoration will then be carried out by Quainton Road volunteers, supported by further fund raising by GNRS individual members. |
| Owner | Quainton Railway Society |
| External Structural Condition | Fair |
| Internal Structural Condition | Derelict/Not Present |
| Underframe Condition | Poor but Substantially Complete |
| External Finish | Poor and Incomplete |
| Degree of External Originality | As left Departmental service |
| Degree of Internal Originality | Not Applicable |
| Degree of Underframe/Running Gear Originality | As left Departmental service |
| Degree of External Authenticity | Good |
| Degree of Internal Authenticity | Not Applicable |
| Degree of Underframe Authenticity | Good |
| Rarity | Few |
| Historical Importance | Very Important |
| Storage | Secure Building |
| Operating | No |
| Survey Date | 27/08/2005 |
| Surveyor | Kevin Stroud |
| Photo Date | 04/05/2014 |
| Photo by | Steve West |
| At Risk | No |
| Date Record Last Updated | 05/08/2024 |
