Jack Mathis (Valley of the Cliffhangers) made a reprint of this pressbook available in the 1970s, when fandom was rediscovering the serial action format (especially with the more comic book and comic strip-sourced heroes on the silver screen). I would love to find the "circus" herald, mentioned on the Exploitation page. I'm not sure what denotes a circus herald, but the 5×17 inches size may be a clue. And not many movies would suggest a Special Timber or Logging District Stunt fo promotion, I'm sure.
See more pressbooks and heralds From Zombos' Closet. Comic reader version: Download King of the Forest Rangers Pressbook