The Amazing Spider-Man 1963 #351 Direct ed. - back issue - $4.00
Spider-Man and Nova witness the robbery of a container of rare Antarctic vibranium. They trace the thieves back to a complex run by the Life Foundation and discover that the vibranium is being used as a fail safe for the Tri-Sentinel which the Foundation plans on using for their own protection. Despite Spider-Man?s protests, the Tri-Sentinel is activated and immediately reverts to its original programming, the destruction of nuclear power plants. With the deadly robot on a rampage, Spider-Man and Nova have a fight on their hands.
- - Stan's Soapbox; July Coolometer.
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