| Year | 1961 |
| Date | 26-Oct |
| Volume | 125 |
| Issue | 3,146 |
| Page | 493 |
| Category | Internal Combustion |
| Part | |
| Title | Light Alloys in engine design |
| Author | Edgar T.Westbury |
| Notes | General arrangement of the Seagull 10 c.c. twin engine, sand castings for the 15 c.c. Seal, die castings for 2.5 c.c Ladybird, gravity die castings for 10 c.c. Cherub, Rolls-Royce V8, Birmingham Aluminium Casting Co., LM 8 alloy |