| Issue | #21 |
| Published | 2 September 1967 |
| Cover Price | 9d |
| Pages | 40 |
| Editing | Alf Wallace [as Alf]; ? [as Bart]; Stan Lee (original editor) |
| Characters | Captain America |
| Genre | Superhero |
| Pencils | Jack Kirby |
| Reprinted | from Avengers, The (Marvel, 1963 series) #16 (May 1965) [cover] |