| Year | 1938 |
| Date | 03-Mar |
| Volume | 78 |
| Issue | 1,921 |
| Page | 208 |
| Category | Educational |
| Part | |
| Title | First Steps in Model Engineering. Workshop Advice, Experience and Philosophy for Readers of all Ages |
| Author | "Inchometer" |
| Notes | About various safety valves, proper function of a safety valve, types of model safety valves, obtaining steam tightness, enquiry about age of a dynamo (photo), concerning early dynamos machines, dynamos - elementary considerations, the field magnet |