| Year | 1945 |
| Date | 24-May |
| Volume | 92 |
| Issue | 2,298 |
| Page | 494 |
| Category | Nautical |
| Part | |
| Title | Producing Ships' Ventilators |
| Author | W.L.Hayward |
| Notes | Photograph showing the plaster mould, the wooden pattern, the lead cast, the copper shell with lead melted out, copper polished |