| Year | 2018 |
| Date | 02-Mar |
| Volume | 220 |
| Issue | 4,581 |
| Page | 375 |
| Category | Locomotive |
| Part | |
| Title | Articulated Locomotives |
| Author | Dave Kent |
| Notes | Conducts a survey of the various locomotives and issues an appeal. Early Fairlie, camelback Mallet, 'du Bousquet', Mallet system Leader |