| Year | 1925 |
| Date | 01-Oct |
| Volume | 53 |
| Issue | 1,275 |
| Page | 421 |
| 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 | Valve rockers, valve rocker bushes, clamping bolts for standards, valve rocker spindles, rocker spindle nut and greaser combined |