| Year | 1999 |
| Date | 23-Apr |
| Volume | 182 |
| Issue | 4,092 |
| Page | 502 |
| Category | Horology |
| Part | 9 |
| Title | A 3/4 Second Pendulum Electric Clock (C.R.Jones) |
| Author | John Wilding |
| Notes | Shows how to mark out, drill and profile the frames, spacing pillars. Erratum, movement frames, drilling in brass, suppliers |