| Year | 2010 |
| Date | 03-Dec |
| Volume | 205 |
| Issue | 4,392 |
| Page | 693 |
| Category | Horology |
| Part | |
| Title | Crossing out clock gear wheels |
| Author | Richard Parsons |
| Notes | Uses low cunning and a milling machine. Analysis of the work to be done, tooling, definitions, setting up, crossing out, finishing the wheel |