| Year | 1938 |
| Date | 12-May |
| Volume | 78 |
| Issue | 1,931 |
| Page | 445 |
| Category | Educational |
| Part | |
| Title | First Steps in Model Engineering. Workshop Advice, Experience and Philosophy for Readers of all Ages |
| Author | "Inchometer" |
| Notes | The breech-loading Armstrong gun, explaining the breech action, simplification of the model, rough turning and drilling the gun, parting off and finishing, making the trunnion ring, stud box, breech screw and cross-bar, chucking on the faceplate, buttress screw thread, forms of stud driver |