| Year | 1920 |
| Date | 23-Dec |
| Volume | 43 |
| Issue | 1,026 |
| Page | 503 |
| Category | Workshop |
| Part | |
| Title | Some Modern Machine and Hand Tools |
| Author | Geo. Gentry |
| Notes | An Attachment for Forming and Backing off in the Lathe. General view of relieving accessory, Milton relieving attachment, ornamental engraving |