| Year | 2008 |
| Date | 12-Sep |
| Volume | 201 |
| Issue | 4,334 |
| Page | 332 |
| Category | Stationary Engine |
| Part | |
| Title | McOnie's Oscillating Engine |
| Author | Anthony Mount |
| Notes | Completes the cylinder, commences work on the steamchest. Steam ports, steam passages, pivot bosses, angled holes, cylinder pivots, jobs for later, steamchest, slide valve cavity |