| Year | 1925 |
| Date | 24-Sep |
| Volume | 53 |
| Issue | 1,274 |
| Page | 407 |
| Category | Small Power Plant |
| Part | |
| Title | The Construction of a Twin Horizontally Opposed 2-inch by 2 1/2-inch Petrol Engine |
| Author | E.W.Brennand |
| Notes | Valves and accessories, valve guides, valve springs, valve collars, valve cotters, valve rocker gear, valve rocker standards |