| Year | 1987 |
| Date | 03-Apr |
| Volume | 158 |
| Issue | 3,798 |
| Page | 401 |
| Category | "Countryman's Steam" |
| Part | 1 |
| 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 | Choice of prototype for the model, the full size steam tractor, general arrangement, the 2 in. scale model, some notes on the firm of Ruston, Proctor & Co., Lincoln, acknowledgements |