| Year | 2011 |
| Date | 25-Feb |
| Volume | 206 |
| Issue | 4,398 |
| Page | 270 |
| Category | Stationary Engine |
| Part | |
| Title | Twin oscillator steam engine |
| Author | Ray Griffin |
| Notes | Builds the Stuart Models kit. Correction, machining the valve face and reversing valve holes, the drilling jig in use, crankshaft items 15 and 16 |