| Year | 1932 |
| Date | 08-Sep |
| Volume | 67 |
| Issue | 1,635 |
| Page | 225 |
| Category | Locomotive |
| Part | |
| Title | An Internal Admission Slide Valve Cylinder for Model Locomotives |
| Author | Henry Greenly |
| Notes | Cross sections, elevation of cylinder, steam chest and double cavity valve |