The Flash (1959)

The Flash #123 (September 1961), "Flash of Two Worlds!", cover by Carmine Infantino with inks by Murphy Anderson Two Flashes sprint in from opposite sides toward a man pinned under a falling chimney, each shouting the same line, and the symmetry tells the story before a word is read. That mirrored rescue is what later artists borrow whenever two versions of a hero meet. DC itself has returned to it again and again, on Flash #147 in 1964, on the second Flash series' own #123 in 1997, on Impulse #70 and on the 2016 Rebirth run, and Dark Horse Presents #67 riffed on it too. Any cover where two speedsters charge toward one victim is echoing this one.