Hornby R3917 BR Class 31 A1A-A1A D5627 - Era 6
| Gauge | 00 |
| Finish | Standard |
| Length | 225mm |
| DCC Type | DCC Ready |
| Period | Era 6 (1957 - 1971) |
| Operator/Livery | Pontypool & Blaenavon Railway, BR Green |
| Class | Class 31 |
| Designer | Brush Traction |
| Minimum Curve | R2 |
| Age Suitability | 14+ |
| Motor | 5 Pole Skew Wound |
| Wheel Configuration | A1A-A1A |