| Year | 2001 |
| Date | 02-Nov |
| Volume | 187 |
| Issue | 4,157 |
| Page | 392 |
| Category | Keith's Column |
| Part | 20 |
| Title | Saint Christopher. A GWR Locomotive for 7 1/4in. Gauge |
| Author | Keith Wilson |
| Notes | Comparison - Walschaerts and Stephenson's valve gears, expansion links, other valve gear components, well-known Welshman: Dia Block, weighshaft and bearings |