| Year | 2007 |
| Date | 30-Mar |
| Volume | 198 |
| Issue | 4,296 |
| Page | 410 |
| Category | Pete's Page |
| Part | |
| Title | Cannon Fire! |
| Author | Peter Spenlove-Spenlove |
| Notes | Describes the origins of a cannon. Built by the author from parts supplied by Bert Dyer, the importance of tool centre height |