13 - The Mark On The Door
Major Edition Types
BACK
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| Type | Years | Text | Cover | Spine | Art | Endpaper |
| A | 1934-46 | Original | Brown | Yellow | Gretta | Orange Gretta |
| B | 1947-49 | * | ||||
| C | 1950 | Wrap | Gillies | |||
| D | 1951-58 | Tan | ||||
| E | 1959-61 | Brown multi-scene | ||||
| F | 1962-66 | PC | ||||
| G | 1967-79 | Revised | Blue | Nappi | White multi-scene | |
| H | 1979-87 | Cameo | ||||
| I | 1987-Date | Flashlight PC | Blank | |||
| Major Variants In 1970 & 1971 revised text editions were issued with the Gillies cover art. * - frontispiece removed c.1947 | ||||||