| Issue | #315 |
| Published | August 1964 |
| Frequency | monthly |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Mort Weisinger |
| Characters | Superman; Zigi; Zagi |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | George Klein |
| Characters | Superman; Zigi; Zagi; Lois Lane; Duke Bragger (villain); "Slash" Sabre (villain) |
| Genre | superhero |
| Script | Leo Dorfman |
| Pencils | Jim Mooney |
| Inks | Jim Mooney |
| Notes | Story continues in the following issue. |
| Reprinted | in Limited Collectors' Edition (DC, 1972 series) #C-38 |
| Genre | superhero |
| Pencils | ? (illustration) |
| Inks | ? (illustration) |
| Letters | typeset |
| Letters | typeset |
| Characters | Supergirl; Green Kryptonite; Supergirl's Fortress of Solitude; Superman's Fortress of Solitude; Kandor; Zor-El; Allura; Fred Danvers; Edna Danvers; Dar-Lin; Zantor; Rena; The Srang (villain) |
| Genre | superhero |
| Script | Leo Dorfman |
| Pencils | Jim Mooney (signed) |
| Inks | Jim Mooney (signed) |
| Reprinted | in Showcase Presents: Supergirl (DC, 2007 series) #2 |
| Synopsis | This issue contains a 2/3 page subscription ad, a half-page ad for Giant Superman Annual 9 (which was released as 80-Page Giant #1 with some modifications), and a half-page ad for 80-Page Giant #2 featuring Jimmy Olsen. |