Great ad dug up by Phil Reed at BattleGrip. New Jersey’s Heroes World was a king of mail-order marketing in the 1970s, and their catalogs, now collector’s items, featured art by the nearby Joe Kubert School of Cartoon and Graphic Art.
I found another Heroes World ad below, courtesy of Tom Heroes. These are the only two I’ve seen. As I said in my original post about the ill-fated Knickerbocker line, it had almost no advertising push in a very crowded action figure market. The figures themselves appear to be pretty high quality, however.
2 Warps to Neptune 