| Year | 1927 |
| Date | 30-Jun |
| Volume | 56 |
| Issue | 1,364 |
| Page | 603 |
| Category | Locomotive |
| Part | |
| Title | "Helen Long". 2 1/2-in. Gauge 4-8-4 |
| Author | LBSC |
| Notes | "Outside works", "Helen's" outside motion (photo by The Norbury Studio), cylinders, steam chests, other milling methods, ports and passages, covers and pistons |