| Year | 1939 |
| Date | 25-May |
| Volume | 80 |
| Issue | 1,985 |
| Page | 597 |
| Category | Inside Cover Picture |
| Part | |
| Title | Brothers' Combined Effort. A Home-made Domestic Refrigerator by W.A. and P.J.Dupen |
| Author | |
| Notes | Evaporator mounted for test, compressor parts, condensing unit ready for testing |