About midway (29 Nov 1936) through Franklin Osborne Alexander’s run with Charles Kahles’s character Hairbreadth Harry, the adventurer and his lady friend Belinda found themselves taken to the year 4936 by a magic hourglass where they are up against their arch-nemesis Relentless Rudolph Ruddigore Rassendale. I don’t know whether the characters and their hour glass had any other adventures in time.
Harry! A mouse is in the trap and I haven’t the nerve to—OH!—you’ve knocked over the magic hour glass. . .!

Variants

(1)
  1. “Hairbreadth Harry” by F. O. Alexander (29 November 1936).
    2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by F. O. Alexander