20 - The Mystery Of The Flying Express
Major Edition Types
BACK
| ||||||
| Type | Years | Text | Cover | Spine | Art | Endpaper |
| A | 1941-50 | Original | Brown | Yellow | Laune | Orange Gretta |
| B | 1951-58 | Tan | ||||
| C | 1959-61 | Brown multi-scene | ||||
| D | 1962-69 | PC | Blue | Leone | ||
| E | 1970-79 | revised | Nappi | White multi-scene | ||
| F | 1979-87 | Cameo | ||||
| G | 1987-Date | Flashlight PC | Blank | |||
| Major Variants
1959 - off-center cut, dark brown multi-scene endpapers | ||||||