He had to kill or be killed . . . as he fought the deadliest duel in frontier history!
The Art of Combat
15 Sensational Sense-Staggering Episodes! (original-release posters)
New Thrills...New Marvels, New Wonders New Thrills!...New Marvels, New Wonders
REIGN OF TERROR FROM EARTH! (original ad - all caps)
«First it drives you mad, then it kills and kills and kills!»