| Year | 1922 |
| Date | 13-Apr |
| Volume | 46 |
| Issue | 1,094 |
| Page | 362 |
| Category | Testing |
| Part | 5 |
| Title | Precision. Jigs, Fixtures and Wangles |
| Author | |
| Notes | Thumbscrews, tool-holder screws, bushes for drilling jigs, jig feet, columns, eye bolts, grinding allowances, wheel nuts, light machine link, wheel screws, "wangling" jig, universal drilling jig |