| Year | 1909 |
| Date | 16-Dec |
| Volume | 21 |
| Issue | 451 |
| Page | 590 |
| Category | Steam |
| Part | 3 |
| Title | Simple Model Steam Engine Construction |
| Author | "Ajax" |
| Notes | Design for a simple horizontal steam boiler. Longitudinal section of boiler, back boiler end, cross-section through flue tube |