| Year | 1933 |
| Date | 18-May |
| Volume | 68 |
| Issue | 1,671 |
| Page | 459 |
| Category | Horology |
| Part | |
| Title | The Construction of a Synchronous Electric Clock |
| Author | J.R.Woods |
| Notes | Principle, construction, train of wheels, the rotor, the stator, the coil, assembly, the case, wiring |