1966 National Periodical Publications
"At last," say the Riddler, bending over a safe, "I am about to commit a crime without fear that Batman and Robin will interfere. Of course I did have to leave him with my usual clue; but this time there is no one living to figure it out!" Then as the Riddler opens the safe door, there is a violent concussion and flash of light. "Just enough to stun him!" explains one of the guard.
#10 of 11 Batman vs the Riddler cards.
Collect the entire series of 55 Batman cards