| Year | 1949 |
| Date | 24-Nov |
| Volume | 101 |
| Issue | 2,531 |
| Page | 655 |
| Category | Locomotive |
| Part | |
| Title | Twin Sisters. Two 5-in. gauge locomotives, exactly alike externally but very different internally |
| Author | J.I.Austen-Walton |
| Notes | Trailing suspension system (photo by A.Duncan), trailing axlebox brackets, quartering, brake-hanger brackets |