| Year | 2023 |
| Date | 17-Nov |
| Volume | 231 |
| Issue | 4,730 |
| Page | 677 |
| Category | Steam |
| Part | 13 |
| Title | Radial Valve Gears Again |
| Author | Duncan Webster |
| Notes | Baker's Valve Gear. Sheds light on what is often seen as a complex subject. Baker valve gear - outside and inside admission, Pilliod design of Baker's valve gear, program outputs, references |