| Year | 1907 |
| Date | 23-May |
| Volume | 16 |
| Issue | 317 |
| Page | 486 |
| Category | Chats on Model Locomotives |
| Part | |
| Title | Valve gearing for smaller models |
| Author | Henry Greenly |
| Notes | Correcting motion to a radial valve-gear, double block & pin, uncorrected radial gear, Heywood type of correcting gear appaied to a model |