| Year | 2010 |
| Date | 07-May |
| Volume | 204 |
| Issue | 4,377 |
| Page | 584 |
| Category | Keith's Column |
| Part | |
| Title | Miniature steam locomotive matters |
| Author | Keith Wilson |
| Notes | Looks at regulators. Lillian boiler/regulator assembly, proportionality, notching up, layout of Walschaerts valve gear, lamp casting |