Marvel Comics © March 1967, Thor #138.  The story is "The  Flames of Battle!", The Trolls steal Thor's hammer while he's on earth using the Orb of Orikal which they have stolen from its owner.

Characters:  Thor [Donald Blake]; Ulik; Geirrodur; Orikal (introduction); Sif; Odin

Works by:  Script: Stan Lee    Pencils: Jack Kirby    Inks: Vince  Colletta

This book appears (63 f), w/ the expected nics, tics, wear and tear.  Thanks for looking.     0372-1902-63