| Year | 1931 |
| Date | 15-Jan |
| Volume | 64 |
| Issue | 1,549 |
| Page | 51 |
| Category | Petrol Engine Topics |
| Part | |
| Title | Ignition Coil Construction |
| Author | Edgar T.Westbury |
| Notes | Contact breaker with cover removed, engine with contact breaker fitted, the "Atom" ignition coil, wiring diagram, "Atom" coil and condenser, the "Atom" contact-breaker |