Metal Men #25

The Metal Men face their most formidable foe yet as the cover of this 1967 DC issue makes dramatically clear — the massive, luminous form of Chemo looms over the entire scene, bombarding the robot team with searing energy rays. Tin, Lead, Mercury, Tina, Gold, and Iron are scattered and staggered across the foreground, caught in the chemical giant's overwhelming assault. Ross Andru and Mike Esposito deliver a cover that captures both the scale of the threat and the team's desperate struggle against it.