| Year | 1987 |
| Date | 07-Aug |
| Volume | 159 |
| Issue | 3,806 |
| Page | 144 |
| Category | "Countryman's Steam" |
| Part | 5 |
| 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 | Machining the cylinder, the steam chest, valve gear, the crankshaft, built-up crankshaft, the flywheel, crankshaft bearings and brackets |