| Year | 2007 |
| Date | 03-Aug |
| Volume | 199 |
| Issue | 4,305 |
| Page | 159 |
| Category | Keith's Column |
| Part | 1 |
| Title | 'Knotty'. A Unique Locomotive. Designed for 5in. and 7 1/4in. gauge |
| Author | Keith Wilson |
| Notes | Introduces a new design. North Staffordshire Railway 0-6-0 4-cylinder tank engine, side elevation, knotty problem, back to Knotty, minor differences, another view, quartering, Wilson's Words of Wisdom |