"Mayhem Over Manhattan!"
August 1968
With Jarvis' help, the Avengers defeat the MOE; the Cowl is revealed as Ultron-5
marvel.com
- first full appearance of Ultron
reprinted in
*
40 Years of Avengers
2006, in collection
(2006*)
*
Greatest Battles of the Avengers TPB
1993, in collection
(1993*)