| Issue | #191 |
| Published | August 1971 |
| Cover Price | 0.15 USD |
| Pages | 36 |
| Editing | Stan Lee |
| Notes | Cover inks credit from Nick Caputo via the GCD Error List (19 December 2006) |
| Characters | Thor; Loki; Sif |
| Synopsis | Thor faces a gigantic Loki in Asgard |
| Genre | Superhero |
| Pencils | John Buscema |
| Inks | Frank Giacoia |
| Notes | Cover inks credit from Nick Caputo via the GCD Error List (19 December 2006) |
| Reprinted | in Essential Thor (Marvel, 2001 series) #4 [black & white] |
| Characters | Thor; Odin; Loki; Sif; Balder; Karnilla; Warriors Three [Hogun; Fandral; Volstagg]; Durok the Demolisher (I)(O) |
| Genre | Superhero |
| Script | Stan Lee |
| Pencils | John Buscema |
| Inks | Joe Sinnott |
| Letters | Sam Rosen |
| Notes | First appearance and origin of Durok the Demolisher. |
| Reprinted | in Essential Thor (Marvel, 2001 series) #4 [black & white] |