| Year | 1952 |
| Date | 18-Dec |
| Volume | 107 |
| Issue | 2,691 |
| Page | 794 |
| Category | Locomotive |
| Part | |
| Title | Twin Sisters. Two 5-in. gauge locomotives, exactly alike externally but very different internally |
| Author | J.I.Austen-Walton |
| Notes | The hand brake, truncated threads, the crank, the vertical brake shaft, a bogey! Finish |