| Year | 1955 |
| Date | 30-Jun |
| Volume | 112 |
| Issue | 2,823 |
| Page | 733 |
| Category | Petrol Engine Topics |
| Part | |
| Title | A 10 c.c. General-purpose Four-stroke (Dolphin) |
| Author | Edgar T.Westbury |
| Notes | Carburettor and Contact-Breaker. Contact-breaker, construction, spring blade, push-rod and insulating bushes |