| Issue | #1 |
| Published | December 1970 |
| Cover Price | 0.25 |
| Pages | 68 |
| Editing | Stan Lee |
| Genre | superhero |
| Pencils | Jack Kirby |
| Inks | Chic Stone |
| Reprinted | from X-Men (Marvel, 1963 series) #9 (January 1965); in Marvel Masterworks: The X-Men (Marvel, 2003 series) #7 |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | Chic Stone |
| Letters | Sam Rosen |
| Reprinted | from X-Men (Marvel, 1963 series) #9 |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | Chic Stone |
| Letters | Artie Simek |
| Reprinted | from X-Men (Marvel, 1963 series) #11 |