| Year | 1907 |
| Date | 22-Aug |
| Volume | 17 |
| Issue | 330 |
| Page | 184 |
| Category | Stationary Engine |
| Part | 8 |
| Title | A Design for a Small Model Undertype Engine |
| Author | Henry Greenly |
| Notes | The Boiler. Flanged ends, water-tube setting-out, improved downcomer & backplate, alternative firehole arrangements |