| Year | 2009 |
| Date | 08-May |
| Volume | 202 |
| Issue | 4,351 |
| Page | 554 |
| Category | Road Steam |
| Part | 3 |
| Title | Half-scale Burrell Gold Medal Tractor |
| Author | Martin Wallis |
| Notes | Proof machines the cylinder. Datum faces, angle plates, machining the bores, fly cutting the underneath, valve ports |