| Year | 1927 |
| Date | 30-Jun |
| Volume | 56 |
| Issue | 1,364 |
| Page | 619 |
| Category | Practical Letters from Our Readers |
| Part | |
| Title | Power Reverse Gear on Model Locomotives |
| Author | F.M. de Ripperda |
| Notes | The Franklin precision power reverse gear, Hudson type locomotive for the New York Central |