| Year | 1950 |
| Date | 07-Dec |
| Volume | 103 |
| Issue | 2,585 |
| Page | 886 |
| Category | Petrol Engine Topics |
| Part | |
| Title | A 10 c.c. Twin Four-Stroke. "Seagull" |
| Author | Edgar T.Westbury |
| Notes | General arrangement of carburettor, water service pipes, carburettor body and components, final assembly, keying timing pinions |