Incredible Hulk #6 represents the conclusion of Hulk's original six-issue Silver Age run and features the first appearance of the Metal Master and the Teen Brigade. Created by Stan Lee and Steve Ditko, this issue is a foundational piece of Marvel history and remains one of the most important early Hulk collectibles. CGC 4.0 examples are increasingly difficult to acquire and remain highly sought after by collectors assembling complete Hulk runs.