| Year | 1977 |
| Date | 20-May |
| Volume | 143 |
| Issue | 3,561 |
| Page | 548 |
| Category | Agricultural |
| Part | 2 |
| Title | Darby-Savage Digging Engine |
| Author | Colin R.Tyler |
| Notes | A most unusual model. Boiler, chimney, outer wrapper and throatplate, water tank, barrels and throatplates |