| Year | 1953 |
| Date | 30-Apr |
| Volume | 108 |
| Issue | 2,710 |
| Page | 532 |
| Category | Workshop |
| Part | |
| Title | "Pocket" Workshops |
| Author | Terry Aspin |
| Notes | Principal measurements of the four-jaw chuck, Adept No. 1 with stroking device, a sister, the dividing attachment, general layout, a hand stroking device, disengaging |