| Issue | #19 |
| Published | February 1969 |
| Cover Price | 0.25 |
| Pages | 18 |
| Editing | Roy Thomas |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | John Verpoorten |
| Notes | Cover based on the cover of Fantastic Four (Marvel, 1961 series) #27 |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | George Roussos |
| Letters | Sam Rosen |
| Reprinted | from Fantastic Four (Marvel, 1961 series) #27 (June 1964) |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | Don Heck |
| Inks | Dick Ayers |
| Letters | Sam Rosen |
| Reprinted | from Tales of Suspense (Marvel, 1959 series) #61 (January 1965) |
| Characters | Watcher [Uatu] (narrator); Vince Harding; Paul Harding |
| Synopsis | A space explorer finally gives up his quest to find a more advanced species, not knowing that the primitives he found were more advanced, until they invented the cobalt bomb. |
| Genre | science fiction |
| Script | Stan Lee (plot); Larry Lieber (script) |
| Pencils | Larry Lieber |
| Inks | George Roussos |
| Letters | Sam Rosen |
| Reprinted | from Tales of Suspense (Marvel, 1959 series) #51 (May 1964) |
| Script | Stan Lee |
| Pencils | Steve Ditko |
| Inks | Steve Ditko |
| Letters | Artie Simek |
| Reprinted | from Strange Tales (Marvel, 1951 series) #128 (January 1965) |