| Present Location | Milton of Crathes |
| County Location | Aberdeenshire |
| Designed For | BR |
| Build Location | Derby |
| Built by | BR |
| Diagram number | 406 |
| Lot number | 30368 |
| Type | DMBSO |
| First Number | 79999 |
| Later Numbers | Sc79999 RDB975004 LAB 16 Gemini |
| Present Number | 79999 |
| Current Livery | BR multiple unit green livery |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | With 79998 Battery-electric twin (Ballater Branch). P 1986 by West Yorkshire Transport Museum, at Bradford Hammerton Street till 1989, then East Lancs Railway. To Echt (12 miles from Aberdeen) 2001. To Milton of Crathes 05/06. With 79998 makes up 'Gemini' pair. Retains original 1950s plastic laminate finishes to interior and original moquette in the small saloon. Hauled use only: battery power is not available (the wiring for the traction is in need of replacing and new batteries are needed). |
| Owner | Royal Deeside Railway Preservation Society |
| External Structural Condition | Good |
| Internal Structural Condition | Good |
| Underframe Condition | Good |
| External Finish | Good |
| Internal Finish | Good |
| Degree of External Originality | As built/last Passenger rebuild (BR or before) |
| Degree of Internal Originality | Some 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 | Good |
| Degree of Underframe Authenticity | Good |
| Rarity | Unique |
| Historical Importance | Some Importance |
| Storage | Open |
| Operating | Yes |
| Survey Date | 30/06/2012 |
| Surveyor | David Wigley |
| Photo Date | 28/05/2016 |
| Photo by | Steve West |
| At Risk | No |
| Date Record Last Updated | 21/06/2016 |
