But, as it would turn out, the grey coloring was difficult for Marvel's printers to produce, so Lee was forced to shift the Hulks appearance from grey to green in The Incredible Hulk #2.
Ever since the Hulk debuted in the pages of Marvel Comics all way back in May 1962 in his solo series The Incredible Hulk #1, he has been a major fixture of the Marvel Universe. Yet the character ...