Avengers #55 FN 1st App. of Ultron

FN (6.0)

1st App. of Ultron

Story by  Roy Thomas
Art by John Buscema and George Tuska
Cover by John Buscema  

The Avengers are held captive by the Crimson Cowl, disguised as Jarvis! Plus, Ultron and Whirlwind escape during a fight with the Masters of Evil!