| Year | 1988 |
| Date | 01-Apr |
| Volume | 160 |
| Issue | 3,822 |
| Page | 388 |
| Category | "Countryman's Steam" |
| Part | 13 |
| Title | Ruston, Proctor Steam Tractor. A 2 in. scale model of the 3 ton single cylinder class SD light steam tractor |
| Author | John Haining |
| Notes | The piping diagram, safety valves, the governor |