| Year | 1906 |
| Date | 22-Mar |
| Volume | 14 |
| Issue | 256 |
| Page | 268 |
| Category | Some Useful Workshop Devices |
| Part | |
| Title | Lathe Testing and Adjusting |
| Author | V.W.Delves-Broughton |
| Notes | Micrometer electric testing needle, testing centre, bars for testing alignment of mandrel & saddle movement |