| Year | 2009 |
| Date | 27-Mar |
| Volume | 202 |
| Issue | 4,348 |
| Page | 382 |
| Category | Trade |
| Part | 2 |
| Title | Pseudo Steam |
| Author | Roger Bunce |
| Notes | Considers the Dock Shunter and Prairie Tank engines in more detail. Brief history of Y7, Y7 model construction, brief history of the Prairie Tank, Prairie Tank model construction |