Carl Barks Uncle Scrooge "Micro-Ducks From Outer Space" Page 2

Gold key (Western Publishing Company) 1976 issue #130

Miniature spacemen had been the trick "O'Henry" ending of the January 1961 Twilight Zone TV show episode 'The Invaders.' And reduced sized humans has been a common attribute from many films and stories predating Hollywood altogether.

See the spalsh page from Carl Barks "Micro-Ducks from Outer Space" here.