| Year | 1999 |
| Date | 17-Dec |
| Volume | 183 |
| Issue | 4,109 |
| Page | 753 |
| Category | Keith's Column |
| Part | 3 |
| Title | Stephenson's Valve Gear |
| Author | Keith Wilson |
| Notes | Describes his method of making expansion links and die blocks, valve setting. Dai Blocks, a Welsh friend, setting by equal beats |