| Year | 1931 |
| Date | 11-Jun |
| Volume | 64 |
| Issue | 1,570 |
| Page | 562 |
| Category | Model Aeronautics |
| Part | |
| Title | The "Heron" Low-Wing Monoplane |
| Author | Juste van Hattum |
| Notes | Three-quarter rear and front views of "Heron", Pelly Fry low wing monoplane, the wing, construction details |