| Year | 1915 |
| Date | 17-Jun |
| Volume | 32 |
| Issue | 738 |
| Page | 504 |
| Category | Workshop Topics |
| Part | |
| Title | Taper Turning on a 3 1/2-in. S.C. Lathe |
| Author | |
| Notes | Showing index marks on headstock & bed of 3 1/2" lathe, diagram showing relative positions of the lead screw, tool & thread to be cut |