Low $2k
 | 
Mid $6k
 | 
High $32k
  • 1st cover appearance of the Sub-Mariner
  • 1st appearance of the Nazi flag on a Timely cover
  • *see Top Notch Comics #2 for first Nazi symbol on a comic cover
  • 1st appearance of Electro, a robot
Details
Publisher Timely
Published February 1940
Written By Carl Burgos
Illustrated By Alex Schomburg