| Year | 1919 |
| Date | 29-May |
| Volume | 40 |
| Issue | 944 |
| Page | 431 |
| Category | Workshop |
| Part | |
| Title | A Sheet Metal Straightener |
| Author | C.Thomson |
| Notes | Detail of end pieces, the rolls, the ends, the slides, general view of the finished machine, the pressure plate, erecting, detail of slides, dimensions of the rolls |