| Year | 1942 |
| Date | 09-Apr |
| Volume | 86 |
| Issue | 2,135 |
| Page | 356 |
| Category | Internal Combustion |
| Part | |
| Title | A 30-c.c. Four-Cylinder Engine |
| Author | Edgar T.Westbury |
| Notes | Manifold side of Wall 30-c.c. four cylinder engine, 30 c.c. the limit, general arrangement, no advantage, straightforward design, valve operation, camshaft side view, all essentials but no frills |