| Year | 1919 |
| Date | 11-Dec |
| Volume | 41 |
| Issue | 972 |
| Page | 542 |
| Category | Railway |
| Part | 3 |
| Title | Model Railway Matters |
| Author | "Crank Pin" |
| Notes | Wheels for Model Locomotives. Arrangement of counterweight for various conditions, as used on the "Sir Sam Fay", wrong arrangement for outside cylindered engine, a typical American goods engine wheel, arrangement of counterweights & cranks |