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Volume 9 - The Great Airport Mystery - Major Edition Types
Hardy Boys Cover Art Hardy Boys Cover Art Hardy Boys Cover Art
B1932 Brown  Brown Gretta
C1932-40    Orange Gretta
E1941-43  Yellow  
F1944-50   Scott 
G1951-59 Tan   
I1959    Brown multi scene
J1960-62  WrapNappi 
K1962-65 PCBlue  
L1965-71Revised   White multi scene
N1979-87    Cameo
O1987-Date Flashlight PC  Blank
Major Variants
1962 - "$1 Box" on cover

All Editions For Sale