| Issue | #68 |
| Published | February 1971 |
| Cover Price | 0.25 USD |
| Pages | 52 |
| Editing | Stan Lee |
| Genre | superhero |
| Pencils | Jack Kirby |
| Inks | Dick Ayers |
| Notes | Cover taken from unaltered stat to X-Men # 15. |
| Reprinted | from X-Men (Marvel, 1963 series) #15 (December 1965); in Marvel Masterworks: The X-Men (Marvel, 2003 series) #7; in Essential Classic X-Men (Marvel, 2006 series) #3 [black & white] |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby; Werner Roth |
| Inks | Vince Colletta |
| Letters | Artie Simek |
| Reprinted | from X-Men (Marvel, 1963 series) #14 |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby; Werner Roth |
| Inks | Dick Ayers |
| Letters | Artie Simek |
| Reprinted | from X-Men (Marvel, 1963 series) #15 |