| Year | 1942 |
| Date | 22-Jan |
| Volume | 86 |
| Issue | 2,124 |
| Page | 89 |
| Category | Internal Combustion |
| Part | |
| Title | A 30-c.c. Twin Two-stroke Petrol Engine |
| Author | R.A.Phillips |
| Notes | The flat plate model, special hand tools for finishing off the inside of joints, the cylinder pattern, the engine with a penny for comparison |