| Year | 1954 |
| Date | 18-Mar |
| Volume | 110 |
| Issue | 2,756 |
| Page | 299 |
| Category | In the Workshop |
| Part | |
| Title | Reducing -Valve for the Miniature Spray Gun |
| Author | "Duplex" |
| Notes | The diaphragm, the thimble, the inlet nozzle, the outlet union, mounting the reducing valve, the spray gun in use, a drawing shaded with the spray gun |