| Year | 1949 |
| Date | 23-Jun |
| Volume | 100 |
| Issue | 2,509 |
| Page | 759 |
| Category | Nautical |
| Part | |
| Title | Two Vertical Marine Engines |
| Author | G.A.Nurthen |
| Notes | Details of the paraffin blowlamp, Engine no.12, connected to the twi drum boiler, no. 13, twin-drum boiler and blowlamp, fittings, speed (photos by R.H.Purvis) |