| Year | 1942 |
| Date | 02-Apr |
| Volume | 86 |
| Issue | 2,134 |
| Page | 318 |
| Category | Locomotive |
| Part | |
| Title | "Molly" |
| Author | LBSC |
| Notes | Safety valves, double pin-drill, how to make the valve, another gauge needed, special double pin-drill, how to adjust the pop-and-shut-down action |