| Year | 1984 |
| Date | 15-Jun |
| Volume | 152 |
| Issue | 3,731 |
| Page | 690 |
| Category | Horology |
| Part | 8 |
| Title | A Grasshopper Skeleton Clock |
| Author | W.R.Smith (U.S.A.) |
| Notes | The fusee click, the click spring, the fusee, machining the fusee curve, grooving the fusee, the slip washer, cutting the slip washer groove |