| Present Location | Keighley Worth Valley |
| Designed For | NER |
| Diagram number | H, C |
| Type | INSP |
| First Number | 1661 |
| Later Numbers | 21661, DE902179, 99750, KWVR 22 |
| Present Number | 21661 99750 |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | TZ built 1871 for Stockton & Darlington Railway, NER 1876. Inspection Saloon from 1884, then rebuilt on bogies 1904; W 1969: on loan to NRM 19??-?? and to NYMR 1991, then back to WVR. Usually on display at Oxenhope Exhibition building. |
| External Structural Condition | Good |
| Internal Structural Condition | Good |
| Underframe Condition | Good |
| External Finish | Very Good |
| Internal Finish | Very Good |
| Degree of External Originality | Some replaced/reproduced material |
| Degree of Internal Originality | As left Departmental service |
| Degree of Underframe/Running Gear Originality | Some replaced/reproduced material |
| Degree of External Authenticity | Good |
| Degree of Internal Authenticity | Not Applicable |
| Degree of Underframe Authenticity | Not Applicable |
| Rarity | Unique |
| Historical Importance | some Interest, Modest Consequence |
| Storage | Secure Building |
| Operating | Yes |
| Survey Date | 28/08/2006 |
| Surveyor | Kevin Stroud |
| Photo Date | 02/08/2006 |
| Photo by | Byron Chamberlain |
| At Risk | No |