| Year | 1957 |
| Date | 01-Aug |
| Volume | 117 |
| Issue | 2,932 |
| Page | 148 |
| Category | Internal Combustion |
| Part | 2 |
| Title | A 60 c.c. Horizontal Gas Engine (Centaur) |
| Author | Edgar T.Westbury |
| Notes | Machining main structural parts. Base plate, body casting, water jacket, cylinder liner, bearing caps |