| Year | 1929 |
| Date | 01-Aug |
| Volume | 61 |
| Issue | 1,473 |
| Page | 105 |
| Category | Locomotive |
| Part | |
| Title | A Model "Planet" Type Locomotive. An Old-timer: Some Notes on How to Build Her |
| Author | Geo. Gentry |
| Notes | The wheels, the drivers, turning the wheels, the leading wheels, turning the leading axle, general note |