| Year | 1931 |
| Date | 26-Mar |
| Volume | 64 |
| Issue | 1,559 |
| Page | 298 |
| Category | Lathe |
| Part | |
| Title | Baby Mandrels for Grown-up Lathes |
| Author | Geo. Gentry |
| Notes | A Design for a Supplementary Mandrel for a Lathe having a 3/8-in Bore, and No. 1 Morse Taper. General note, a comparison, the drawings, the drawn-steel tube, turning the spindle, turning and fitting the bushes, the pulley, the draw spindle, conclusions |