The final appearance of Li'l Professor and Rudy the Robot.
The only appearance of Captain Dash.
The adventures of another 31st century hero, Captain Daring, appear in Daring Mystery Comics (Marvel, 1940 series) #7-8.
The final Golden Age appearance of Silver Scorpion. She reappears in The Invaders (Marvel, 1993 series) #2 (June 1993).
The final Golden Age appearance of Citizen V. He next appears in Thunderbolts: Distant Rumblings (Marvel, 1997 series) #-1 (July 1997).
Filing date: October 1, 1941.
Where the book's title appears in this statement of ownership, the word "Comedy" is handwritten in among the typeset text, because it had originally been set for (and carried the name of) Comedy Comics' predecessor, Daring Mystery Comics.
Appears on the second page of the "Dynamite Demon!" text story.
The Fin gains a magic sword in this, his final Golden Age appearance.