| Year | 1908 |
| Date | 04-Jun |
| Volume | 18 |
| Issue | 371 |
| Page | 540 |
| Category | Electrical |
| Part | |
| Title | An Electrical Engraving Machine |
| Author | H.A.Stevenson |
| Notes | Frame before bending, parts assembled, frame bent to shape, terminal screw, armature contact spring & bearings, needle arm & tube, the bobbins, spring, finished machine |