| Year | 1952 |
| Date | 10-Jan |
| Volume | 106 |
| Issue | 2,642 |
| Page | 59 |
| Category | Locomotive |
| Part | |
| Title | Twin Sisters. Two 5-in. gauge locomotives, exactly alike externally but very different internally |
| Author | J.I.Austen-Walton |
| Notes | Less filing, tiny jobs, drain cock lever, weighshaft bearings, another problem, lifting links, reach rod crank, counter weight |