| Year | 1929 |
| Date | 13-Jun |
| Volume | 60 |
| Issue | 1,466 |
| Page | 556 |
| Category | Locomotive |
| Part | |
| Title | A Model "Planet" Type Locomotive. An Old-timer: Some Notes on How to Build Her |
| Author | Geo. Gentry |
| Notes | The crankshaft, details of existing and proposed cranks, building-up the double crank, turning the shaft, rounded crank webs |