Before they started slinging superheroes, Stan Lee and the bullpen were working at Marvel’s predecessor, Atlas Comics, putting out comics that mimicked EC’s anthologies. The first one I found was in Astonishing 6 (Apr 1951). As I find others, I’ll list them on my time-travel comics page.
Of course! that’s it! I forgot to connect the plug to the electric outlet!

Variants

(1)
  1. “Atlas Comics,” |pending byline|, in Astonishing 6, April 1951.