| Year | 1996 |
| Date | 01-Nov |
| Volume | 177 |
| Issue | 4,028 |
| Page | 518 |
| Category | Countryman's Steam |
| Part | |
| Title | Historical Note. Some thoughts on Wheels |
| Author | John Haining |
| Notes | Class AA7 Fowler, Fowler 12HP, early Aveling and Porter, O.S.Kelly American ploughing engine, hay-tedder wheel |