| Year | 1927 |
| Date | 22-Sep |
| Volume | 57 |
| Issue | 1,376 |
| Page | 284 |
| Category | Model Making Methods Simply Explained |
| Part | |
| Title | Adjustable Drill Jig for Small Holes in Collars |
| Author | N.F.F. |
| Notes | Details of jig for drilling small holes in collars and the like, to drill a collar |