| Year | 1927 |
| Date | 27-Oct |
| Volume | 57 |
| Issue | 1,381 |
| Page | 390 |
| Category | Workshop Topics |
| Part | |
| Title | A Twist-Drill Grinding Attachment for 3 1/2-in. Drummond Lathe |
| Author | Colonel H.S.King |
| Notes | General view, set up for use on the lathe bed, side elevation, projected plan and details, group of components, plan and elevation of base |