| Year | 1957 |
| Date | 20-Jun |
| Volume | 116 |
| Issue | 2,926 |
| Page | 890 |
| Category | Locomotive |
| Part | |
| Title | Unusual Locos. The Heisler geared locomotives |
| Author | Ernest F.Carter |
| Notes | Longitudinal section of bogie showing gears and universal joint, greater starting power, unusual layout, used by the McLoud River Railroad |