| Year | 1933 |
| Date | 31-Aug |
| Volume | 69 |
| Issue | 1,686 |
| Page | 208 |
| Category | Petrol Engine Topics |
| Part | |
| Title | Concerning Twin Two-strokes |
| Author | Edgar T.Westbury |
| Notes | Arrangement of horizontally-opposed twin two-stroke engine, arrangement of twin cylinders, the flat twin engine, ignition circuit for horizontally-opposed two-stroke engine, the vertical twin, arrangement, "Vixen" by the Skingley Brothers, Victoria MSC |