| Year | 1944 |
| Date | 20-Apr |
| Volume | 90 |
| Issue | 2,241 |
| Page | 369 |
| Category | Locomotive |
| Part | |
| Title | "Petrolea". 3 1/2-in. gauge 2-4-0 G.E.R. locomotive |
| Author | LBSC |
| Notes | How to cut ports with an end-mill, "straight" milling, how to "gang-mill" ports, handwork, how to drill passageways, steam inlet and exhaust outlet, oil-way |