| Year | 1925 |
| Date | 07-May |
| Volume | 52 |
| Issue | 1,254 |
| Page | 515 |
| Category | Locomotive |
| Part | 3 |
| Title | Walschaerts Valve Gear. Some Remarks on its Application to Working Models |
| Author | Henry Greenly |
| Notes | Setting the return crank throw, the return crank, fixing, offset, diagram for determining the position and length, round pin method of attaching |