| Year | 2008 |
| Date | 14-Mar |
| Volume | 200 |
| Issue | 4,321 |
| Page | 339 |
| Category | Keith's Column |
| Part | |
| Title | 'Knotty'. A Unique Locomotive. Designed for 5in. and 7 1/4in. gauge |
| Author | Keith Wilson |
| Notes | Describes the springs and suspension. Excel spreadsheet, buckle up lads! Suspension bits, the Knotty elevations, Wilson's Words of Wisdom |