| Year | 1975 |
| Date | 02-May |
| Volume | 141 |
| Issue | 3,512 |
| Page | 424 |
| Category | Road Locomotive |
| Part | 30 |
| Title | Building the Allchin Traction Engine to 1 1/2 in. scale |
| Author | W.J.Hughes |
| Notes | Allchin by W.Linfield. The safety valves, exhaust and blast arrangement, steam stop valves |