| Year | 1989 |
| Date | 01-Dec |
| Volume | 163 |
| Issue | 3,862 |
| Page | 718 |
| Category | Countryman's Steam |
| Part | 17 |
| Title | Superba. Fowler Class Z7 and Superba Ploughing Engine in 2 in. scale |
| Author | John Haining |
| Notes | Boiler feed pump, feed pump eccentric drive, exhaust blast pipe and nozzle |