| Year | 1979 |
| Date | 06-Apr |
| Volume | 145 |
| Issue | 3,606 |
| Page | 378 |
| Category | "Countryman's Steam" |
| Part | 7 |
| Title | A Single-Cylinder Agricultural Traction Engine (Durham & North Yorkshire) in 2 in. Scale |
| Author | John Haining |
| Notes | Valve gear, safety valves and regulator |