| Year | 1923 |
| Date | 15-Mar |
| Volume | 48 |
| Issue | 1,142 |
| Page | 274 |
| Category | Steam |
| Part | 2 |
| Title | A Design for a Model Compound Condensing Steam Engine |
| Author | "Axle" |
| Notes | Condenser tubes, air pump barrel, hotwell, high-pressure valve liner, circulating pump body casting, H.P. and L.P.cylinder covers and steam chest covers |