Mark on the Door   Formats:

1) Brown/Yellow/Orange Gretta (first book not issued w/ a white spine)
2) Brown/Wrap/Orange Gretta
3) Tweed/Wrap/Orange Gretta
4) Tweed/Wrap/Brown Multipic
5) PC/Brown Multipic
6) PC/White Multipic

Illustrators:

1) J. Clemens (aka Clemmens) Gretta - 1934
2) Bill Gillies - 1950
3) Rudy Nappi - 1967

Authors:

1) Leslie McFarlane
2) Tom Mulvey

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