Marvel Comics © December 1968, Thor #159.  The story "The Answer At Last!".  Odin reveals that he created the identity of Dr. Don Blake when he exiled Thor to Midgard years ago.

Characters: Thor; Don Blake (origin); Heimdall; Odin; Storm Giants of Niffelheim (flashback);  Balder (flashback); Warriors Three [Hogun; Fandral; Volstagg] (flashback); Gondolff (introduction) (flashback)

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

This book appears (f/vf 77), w/ the expected nics, tics, wear and tear.  Thanks for looking.     xxxx-xxxx-77