| Year | 1925 |
| Date | 13-Aug |
| Volume | 53 |
| Issue | 1,268 |
| Page | 198 |
| 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 | Crankcase fittings; eyebolts and clamping bolt, drain plug, bearings, outer race clamping ring, roller bearing, outer race clamping ring, ball bearings, release valve |