| Year | 1981 |
| Date | 06-Mar |
| Volume | 147 |
| Issue | 3,652 |
| Page | 290 |
| Category | Nautical |
| Part | 2 |
| Title | Model Marine Engineering. A Water Pump for Marine use |
| Author | Don Gordon |
| Notes | Piston, plunger & pump, piston buckle & slide valves, spigot link & twin levers, bracket for fulcrum for levers |