The Flash #139

This September 1963 issue of The Flash sets up a thrilling mirror-image confrontation, with the scarlet speedster in red racing hard against a yellow-suited counterpart whose reversed lightning bolt emblem signals trouble. A speech bubble makes the stakes plain — this "Flash of the 25th century" is no hero but a law-breaker, while futuristic police vehicles streak through a gleaming cityscape in pursuit below. Carmine Infantino's pencils and Murphy Anderson's inks give the cover a crisp, dynamic energy that perfectly captures the sense of two equally matched speedsters on a collision course.