| Issue | #121 |
| Published | June 1948 |
| Cover Price | 0.10 USD |
| Pages | 52 |
| Editing | Whitney Ellsworth |
| Characters | Superman [Clark Kent]; Atlas |
| Genre | superhero |
| Pencils | Wayne Boring |
| Inks | Stan Kaye |
| Reprinted | in Action Comics (National Comics Publications of Canada Ltd, 1948 series) #121 [cover] |
| Characters | Superman; Atlas |
| Genre | superhero |
| Pencils | Wayne Boring |
| Inks | Stan Kaye |
| Reprinted | in Action Comics (National Comics Publications of Canada Ltd, 1948 series) #121 |
| Characters | Congo Bill |
| Genre | jungle |
| Pencils | Ed Smalle |
| Inks | Ed Smalle |
| Reprinted | in Action Comics (National Comics Publications of Canada Ltd, 1948 series) #121 |
| Script | Lit-Win |
| Pencils | Lit-Win |
| Inks | Lit-Win |
| Characters | Zatara |
| Genre | occult |
| Pencils | W. F. White |
| Inks | W. F. White |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Genre | gag |
| Script | Phil Berube |
| Pencils | Phil Berube |
| Inks | Phil Berube |
| Characters | The Vigilante |
| Genre | superhero |
| Pencils | George Roussos? |
| Inks | George Roussos |
| Reprinted | in Action Comics (National Comics Publications of Canada Ltd, 1948 series) #121 |