| Year | 1955 |
| Date | 10-Nov |
| Volume | 113 |
| Issue | 2,842 |
| Page | 689 |
| Category | Beginners' Workshop |
| Part | |
| Title | Special files and shapes |
| Author | Geometer |
| Notes | Non-standard shaped files for metal and wood working, special files, rotary files, use of templates, filing slotted joints |