DC Comics Presents (1978 DC) comic books in grade NM- or lower

DC Comics Presents (1978 DC) 27N VG- 3.5

Newsstand Edition. Superman and Manhunter from Mars star in "The Key That Unlocked Chaos!" First appearance of Mongul. Written by Len Wein, with art by Jim Starlin, Dick Giordano and Frank McLaughlin. Characters: Superman; Martian Manhunter [J'onn J'onzz, Manhunter from Mars]; Mongul (intro, villain); Steve Lombard; Jimmy Olsen; Lois Lane; The Warzoon (aliens, flashback); The Largas (aliens, flashback); green kryptonite. Plus: "Whatever Happened to Congorilla?" Written by Bob Rozakis, with art by Romeo Tanghal and Frank Chiaramonte. Characters: Congo Bill; Congorilla; Golden Gorilla; Janu; Mose; K'Bani (villain); Fred Cantrell (villain). Cover by Jim Starlin. Cover price $0.50.

DC Comics Presents (1978 DC) 49N VG/FN 5.0

Newsstand Edition. Captain Marvel for a Day (intended title, as noted in issue #54) - Written by Roy Thomas (plot) and Paul Kupperberg (script). Art by Rich Buckler and John Calnan. Cover by Rich Buckler and Dick Giordano. Can even the combined power of Superman and Captain Marvel stand up to the awesome might of Black Adam?! Characters in this issue: Superman; Captain Marvel (origin); Black Adam (villain, origin); The M.E.L.F. (villains); Shazam; Uncle Marvel [as Uncle Dudley]; Jimmy Olsen; Billy Batson (Earth-1). 32 pages, full color. Cover price $0.60.