| Year | 1939 |
| Date | 28-Sep |
| Volume | 81 |
| Issue | 2,003 |
| Page | 369 |
| Category | Model Machine Shop Practice |
| Part | 2 |
| Title | Files and Filing |
| Author | Ernest F.Carter |
| Notes | Types of files, sections of files, the use and abuse of files, types of rifflers, pressure during the cut, on the choice and care of files, attachment for file for flat surfaces |