| Year | 1955 |
| Date | 10-Feb |
| Volume | 112 |
| Issue | 2,803 |
| Page | 155 |
| Category | Petrol Engine Topics |
| Part | |
| Title | A 10 c.c. General-purpose Four-stroke (Dolphin) |
| Author | Edgar T.Westbury |
| Notes | Sectional side elevation, half-sectional end elevations, salient features, valve gear efficiency, cylinder-head cooling, adaptability |