| Year | 1919 |
| Date | 11-Dec |
| Volume | 41 |
| Issue | 972 |
| Page | 537 |
| Category | Steam |
| Part | |
| Title | A Double-Acting Vertical Steam Engine. 51 mm. X 51 mm. |
| Author | "Axle" |
| Notes | Part sectional & end view of crankshaft, coupling & balance weight, details of component parts, setting the eccentric, the flywheel, guide palte & bar & front column, the piston valve, the valve washer |