| Year | 1990 |
| Date | 02-Feb |
| Volume | 164 |
| Issue | 3,866 |
| Page | 164 |
| Category | Countryman's Steam |
| Part | 19 |
| Title | Superba. Fowler Class Z7 and Superba Ploughing Engine in 2 in. scale |
| Author | John Haining |
| Notes | The starting valve, the cylinder drain cocks, footboards and motion covers |