| Year | 1932 |
| Date | 28-Jan |
| Volume | 66 |
| Issue | 1,603 |
| Page | 77 |
| Category | Personal |
| Part | |
| Title | My Earliest and Latest Models |
| Author | Abner Doble (California) |
| Notes | Three-eighths Scale for Model Locomotives, Accurately Machined Wheel Flanges and Treads, early Pelton wheel model, boiler and frames of 4-6-4 passenger locomotive, Rock Ridge Central Railroad |