| Year | 1944 |
| Date | 03-Aug |
| Volume | 91 |
| Issue | 2,256 |
| Page | 116 |
| Category | Workshop |
| Part | |
| Title | Making Accurate Division Plates |
| Author | Numerator |
| Notes | Reducing the errors, blanks and gears required, producing the second accurate plate, a numerical example, dividing the first rough plate |