| Year | 1950 |
| Date | 03-Aug |
| Volume | 103 |
| Issue | 2,567 |
| Page | 189 |
| Category | Locomotive |
| Part | |
| Title | Twin Sisters. Two 5-in. gauge locomotives, exactly alike externally but very different internally |
| Author | J.I.Austen-Walton |
| Notes | Cylinders, front and rear sand boxes, that unit construction, steam chest, special spanner, steam and exhaust pipework, whoa! There boys, tools and equipment (photos by A.Duncan) |