| Year | 1925 |
| Date | 06-Aug |
| Volume | 53 |
| Issue | 1,267 |
| Page | 167 |
| 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 | The crankcase, machining crankcase (preliminary), marking out (first stage), marking out (second stage), machining (second stage), marking out (third stage), machining (third stage), marking out (fourth stage), remaining work on crankcase |