Volume 7 - The Secret Of The Caves - Major Format Types
#
Years
Text
Cover
Spine
Art
EPs
A
1929-32
Original
Red
White
Rogers
Blank
B
1932
Brown
Brown Gretta
C
1932-40
Orange Gretta
E
1941-43
Yellow
F
1944-50
Scott
G
1951-59
Tan
I
1959
Brown multi scene
J
1960-62
Wrap
Nappi
K
1962-64
PC
Blue
L
1964-79
Revised
White multi scene
M
1979-87
Cameo
N
1987-Date
Flashlight PC
Blank
O
2017
New Art
Black
Bartlett
Major Variants
1959 - off-center cut, dark brown multi scene ep's
1962 - "$1 Box" on cover
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