Iron Man, Vol. 1 #43 (1971)

Doomprayer!
Giant-size issue. 25¢ cover price. CONTINUED FROM #42: Iron Man eventually defeats Mikas, while Mister Kline is defeated off-panel (in the Daredevil issues that ran at this time). Doing so not only helps Marianne overcome her fear of Iron Man's armour, but it also expends virtually all power reserves Stark had in his armour. Fortunately, Kevin O'Brian has a tracking device and Stark's Guardsman armour that he uses to track Stark down, saving Stark and Marianne in the nick of time. First appearance of the Guardsman. Backup story: Reprint of Tales to Astonish 52 featuring Giant-Man and the Wasp. "The Black Knight Strikes!" Art by Dick Ayers. 48 pages. Cover price $0.25.
Release Date: 1971