| Year | 1976 |
| Date | 03-Dec |
| Volume | 142 |
| Issue | 3,550 |
| Page | 1,196 |
| Category | Portable Engine |
| Part | 5 |
| Title | 1 1/2 in. scale Marshall Portable Steam Engine |
| Author | W.J.Hughes |
| Notes | Cylinder clock and steam chest, boring the cylinder, machining the saddle, the valve chest |