| Year | 1907 |
| Date | 02-May |
| Volume | 16 |
| Issue | 314 |
| Page | 415 |
| Category | Stationary Engine |
| Part | 3 |
| Title | A Design for a Small Model Undertype Engine |
| Author | Henry Greenly |
| Notes | Cylinders. High pressure steam chest & ports, starting valve gland, exhaust port drilling, drain cock & smokebox plate rebate |