| Year | 1989 |
| Date | 03-Feb |
| Volume | 162 |
| Issue | 3,842 |
| Page | 168 |
| Category | Countryman's Steam |
| Part | 7 |
| Title | Superba. Fowler Class Z7 and Superba Ploughing Engine in 2 in. scale |
| Author | John Haining |
| Notes | Slide bar support, motion bracket made-up, regulator construction and control, Salter safety valves |