| Year | 1937 |
| Date | 23-Sep |
| Volume | 77 |
| Issue | 1,898 |
| Page | 301 |
| Category | Tool-Room Topics |
| Part | |
| Title | The Universal Dividing-Head - Its Construction |
| Author | R.Hutcheson |
| Notes | Front view of the "Parkson", a view of the internal mechanism, a view of the worm and wheel |