| Year | 1938 |
| Date | 13-Jan |
| Volume | 78 |
| Issue | 1,914 |
| Page | 33 |
| Category | Metal-Craft in the School Workshop |
| Part | |
| Title | Files and Filing |
| Author | Nathan Sharpe |
| Notes | File shapes and nomenclature, the rectangular group, outline shapes and sections, the triangular group, the curved section group, special section files |