| Year | 1942 |
| Date | 03-Sep |
| Volume | 87 |
| Issue | 2,156 |
| Page | 233 |
| Category | Locomotive |
| Part | |
| Title | 1831. A 3 1/2in. Gauge I.C. Engine-driven Locomotive |
| Author | Edgar T.Westbury |
| Notes | Cutting the transmission worm gearing. Worm pinion (being cut in lathe showing method of indexinig), fixture for generating worm wheels in the lathe, indexing, cutter bar and hob for forming teeth |