| Year | 1950 |
| Date | 05-Oct |
| Volume | 103 |
| Issue | 2,576 |
| Page | 521 |
| Category | Road Locomotive |
| Part | |
| Title | Detail Traction-Engine Blueprints. The "Allchin-M.E." 1 1/2-in. Scale G.P. Traction Engine |
| Author | W.J.Hughes |
| Notes | The choice of scale, Allchin No. 3251 "Royal Chester" (photo courtesy John G.Earnshaw), castings and supplies, alterations in design, description and photographs |