| Present Location | Pontypool Blaenavon |
| County Location | Torfaen |
| Designed For | GWR |
| Build Location | Swindon |
| Diagram number | Q1 |
| Lot number | 1170 |
| Type | SPEC |
| First Number | 6479 |
| Later Numbers | 80977 |
| Present Number | W80977W |
| Current Livery | BR Crimson Lake and Cream |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | Gloucester District Engineer's Saloon built using u/f ex Manchester & Milford Railway Composite No. 14 (listed as No. 149 some sources) built Ashbury 1895, becoming GWR No. 7900 in 1906 and withdrawn 1908. P pre 1972, at S Devon till 1993. By 02/11 in Shed for "solebar up" rebuild - body frame reported as good but exterior woodwork very poor. Renovated and back into service by 09/13. For use with GER 63 on "Vintage Train" duties. By 09/22: repainted into BR crimson lake and cream livery. |
| Owner | Private |
| External Structural Condition | Very Good |
| Internal Structural Condition | Very Good |
| Underframe Condition | Very Good |
| External Finish | Very Good |
| Internal Finish | Good |
| Degree of External Originality | Some replaced/reproduced material |
| Degree of Internal Originality | Much 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 | Fair |
| Degree of Underframe Authenticity | Good |
| Rarity | Unique |
| Historical Importance | Very Important |
| Storage | Secure Open |
| Operating | Yes |
| Survey Date | 25/07/1999 |
| Surveyor | Michael Cope |
| Photo Date | 09/09/2022 |
| Photo by | Robert Davidson |
| At Risk | No |
| Date Record Last Updated | 18/11/2022 |
