A thrilling story of MYSTERY, LOVE and ROMANCE, "THE MASTER KEY" is the most massive, most expensive serial ever made.
A Crime Club Mystery thriller that's a shriek with excitement (original poster)
The Mightiest of Western Stars
DANGER WAS HIS GAME ---AND THE STAKES---DEATH! (original poster-all caps)
«BLACKIE» MAKES A DATE WITH A GHOST!
It's his biggest 'Beauties and Bullets' adventure!
ADVENTURE IN THE LAND OF THRILLS! Your favorite saddle-sons, crash into new danger-packed excitement in the colorful west! (original print ad)
THE MAIL GOES THROUGH! (original poster)
GALLOP TO GLORY WITH A GREAT NEW HERO...ROBIN HOOD OF THE RANGE! (original poster - all caps)
THE LONE WOLF'S GIVING LESSONS IN LARCENY...and HIS PUPIL'S ARE THE COPS!
What Happened To The West's Most Feared Outlaw?