This is a beautiful cover image by Mike Sekowsky and Dick Giordano. Giordano brought a real fine edge to Sekowksky's energetic designs.
The other issues of Showcase (the final issues of the original run) that featured Manhunter 2070 are below. I only have one issue of this storyline, the issue above, but I wouldn't mind seeing the others, even though from online research I've learned the story didn't really have a conclusion. Ah well.