| Year | 2012 |
| Date | 09-Mar |
| Volume | 208 |
| Issue | 4,425 |
| Page | 356 |
| Category | Locomotive |
| Part | 9 |
| Title | Building a Gauge 3 Dee |
| Author | Dick Allen |
| Notes | Builds an enlarged version of the Gauge 1 Dee. Backhead, foundation ring and stays, testing, regulator body, regulator valve, steam collector, superheater |