| Year | 1921 |
| Date | 30-Jun |
| Volume | 44 |
| Issue | 1,053 |
| Page | 515 |
| Category | Locomotive |
| Part | |
| Title | Single Inside Cylinder for No. 1 Gauge Steam Locomotive |
| Author | Henry Greenly |
| Notes | New "all-circular work" standard single cylinder for No. 1 gauge model locomotives & other purposes, arrangement of cylinder in a bogie locomotive, method of fixing cylinders |