| Year | 1996 |
| Date | 02-Aug |
| Volume | 177 |
| Issue | 4,022 |
| Page | 144 |
| Category | Horology |
| Part | 2 |
| Title | Escape wheel cutter |
| Author | Ted Whale (Canada) |
| Notes | Calculations for accurate manufacture. Appendices 1, 2 and 3, correction factor, appendix 4, acknowledgements, addendum |