| Year | 2020 |
| Date | 11-Sep |
| Volume | 225 |
| Issue | 4,647 |
| Page | 388 |
| Category | Locomotive |
| Part | 3 |
| Title | Building Queen's Messenger |
| Author | Martin Robinson |
| Notes | Builds a 7 1/4 inch gauge Diesel hydraulic engine intended primarily as a club locomotive. Body, 3D printing and casting, conclusion |