| Year | 2005 |
| Date | 08-Jul |
| Volume | 195 |
| Issue | 4,251 |
| Page | 25 |
| Category | General |
| Part | 77 |
| Title | Letters to a Grandson |
| Author | M.J.H. Ellis |
| Notes | Explains an unusual coupling found in the Science Museum. J.J.Constable driving Juliet on the St. Mellons track, 'Sentinel' industrial engine |