4" dia. cardboard code wheel issued by DC Comics as part of the club kit premium. First version issued 1942-1944. Front features Secret Code and has provided lines for owner's name and address. Reverse has instructions and small die-cut window where JSA members' names are visible and these are "Superman, Hawkman, Johnny Thunder, Sandman, Dr. Midnite, The Spectre, Starman, Dr. Fate, The Atom, Wonder Woman, Green Lantern, The Flash, Batman." Couple of barely visible hairline creases on back bottom. Slightest aging but never filled out. Exc. and as nice as these come.