| Year | 1999 |
| Date | 08-Oct |
| Volume | 183 |
| Issue | 4,104 |
| Page | 452 |
| Category | Stationary Engine |
| Part | 6 |
| Title | Harlequin & Hybriquin |
| Author | Mike Thurgood (South Africa) |
| Notes | Completes Halequin, introduces Hybriquin. Connecting rod and crosshead, crankshaft webs, eccentric straps and rods, engine assembly, valve gear, accessories, general running comments, other points of interest, Hybriquin a snap valve engine |