| Year | 1989 |
| Date | 03-Nov |
| Volume | 163 |
| Issue | 3,860 |
| Page | 592 |
| Category | Keith's Column |
| Part | 17 |
| Title | How the Darn Thing Works. A light-hearted, but useful, look at the Steam Engine |
| Author | Keith Wilson |
| Notes | Piston valves, Swindon practice, Doncaster designs, speed records, port sizes |