| Year | 1937 |
| Date | 30-Dec |
| Volume | 77 |
| Issue | 1,912 |
| Page | 645 |
| Category | Metal-Craft in the School Workshop |
| Part | |
| Title | Files and Filing |
| Author | Nathan Sharpe |
| Notes | Milling-tooth files, millenicut files, standard, fine and extra fine cuts, dreadnought files, rough, second, and smooth cut, millenicut files, wavy cut, and high efficiency cuts, how files are measured |