| Issue | #40 |
| Published | June 1955 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Stan Lee |
| Notes | Art credits by Dr. Michael Vassallo (May 2009). Previous indexer had Syd Shores as the artist. |
| Characters | Sub-Mariner [Namor] |
| Genre | superhero |
| Pencils | Bill Everett |
| Notes | Art credits by Dr. Michael Vassallo (May 2009). Previous indexer had Syd Shores as the artist. |
| Reprinted | in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3. |
| Characters | Sub-Mariner [Namor]; Ivan Ivanoff (first appearance; villain); the Communists (villains) |
| Genre | superhero |
| Script | Bill Everett (signed) |
| Pencils | Bill Everett (Signed) |
| Inks | Bill Everett (signed) |
| Letters | Bill Everett |
| Reprinted | in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3. |
| Characters | Sub-Mariner [Namor] (Origin; at age 16); Namora; Byrrah |
| Genre | superhero |
| Script | Bill Everett (signed) |
| Pencils | Bill Everett (Signed) |
| Inks | Bill Everett (signed) |
| Letters | Bill Everett |
| Reprinted | in Marvel Super-Heroes (Marvel, 1967 series) #20 (May 1969) [original layout=4 pages]; in Comix: A History of Comic Books in America (Bonanza, 1971 series) #[nn] [revised layout=2 pages]; in Comix: A History of Comic Books in America (Outerbridge & Dienstfrey, 1971 series) #[nn] [revised layout=2 pages]; in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3. |
| Pencils | Tony DiPreta |
| Inks | Tony DiPreta |
| Reprinted | in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3. |
| Letters | typeset |
| Reprinted | in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3. |
| Characters | Sub-Mariner [Namor]; Namora; Tha-Korr; Byrrah |
| Genre | superhero |
| Script | Bill Everett (signed) |
| Pencils | Bill Everett (Signed) |
| Inks | Bill Everett (signed) |
| Letters | Bill Everett |
| Reprinted | In Marvel Feature #1 (December 1971); in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3. |