| Year | 1918 |
| Date | 12-Dec |
| Volume | 39 |
| Issue | 920 |
| Page | 320 |
| Category | Munition Workshop Practice |
| Part | |
| Title | Screw-cutting Simply Explained for Munition Workers |
| Author | G.Gentry |
| Notes | Internal Screwcutting. Cutting Left-hand Threads, cutting square threads, a tool for cutting, method of finishing |