The Flash #119

This March 1961 issue pits the Scarlet Speedster against one of his most cunning foes in "The Mirror-Master's Magic Bullet!" — and the cover by Carmine Infantino and Joe Giella lays out the threat with chilling clarity: Mirror Master aims his pistol at a large mirror showing Flash's reflection, while the real Flash appears trapped in a smaller mirror panel nearby, the villain gloating that shooting the mirror-image will doom the actual hero. The visual puzzle of reflections-within-reflections is a perfect showcase for the kind of imaginative, science-tinged villainy that made Silver Age DC so compelling. As a bonus, the cover also touts a new Elongated Man story, making this a genuinely packed ten-cent package from writer John Broome and artist Carmine Infantino.