| Year | 1947 |
| Date | 01-May |
| Volume | 96 |
| Issue | 2,397 |
| Page | 544 |
| Category | Workshop |
| Part | |
| Title | Internal Spherical Turning |
| Author | William Cleghorn |
| Notes | The holder complete, turret head, false elliptical curve from two centres, construction, lamp stand with recessed base, nut bowl with metal handle |