Art is consistent with Palais’ signed art from Cow Puncher Comics #5 (1948), including how he draws long holes in smoke, starry visuals, and the “R” inside the ears.
next app. in FRANKENSTEIN COMICS #12
last app. in HEADLINE COMICS #22; last app.
last appearance; the title page says 'starring The Black Owl', but he's not in this story.
Art is consistent with Brewster’s signed Yank and Doodle art from Prize Comics #66 (October 1947).