| Year | 1949 |
| Date | 07-Jul |
| Volume | 101 |
| Issue | 2,511 |
| Page | 27 |
| Category | Locomotive |
| Part | |
| Title | Twin Sisters. Two 5-in. gauge locomotives, exactly alike externally but very different internally |
| Author | J.I.Austen-Walton |
| Notes | Photo by A.Duncan, part sectional assembly of roller axle box for "Major", end-milling |