| Year | 1943 |
| Date | 28-Oct |
| Volume | 89 |
| Issue | 2,216 |
| Page | 420 |
| Category | Workshop |
| Part | 5 |
| Title | How to Make a Micrometer |
| Author | "Ned" |
| Notes | The micrometer bow. Dimensions, the anvil, aligning mandrel and strap, proportions of cast bow for 0-1, fabricating the bow, cast bow, lapping the contact faces, bow for 1-2, sleeve locking ring and thimble locking screw, adjustment, testing |