Archie #647 (1943)

Archie in "Welcome to Mirrordale" -- a date night with Betty turns into an inter-universe collision when the Madhouse Carnival comes to Riverdale! Archie has a lot to reflect on when he takes a trip to the House of Mirrors, but little does he know those mirrors are more than they appear! He's catapulted into a world where everything seems familiar to home -- just a bit different! Can Archie make it back to his date in Riverdale, or is he doomed to switch places with his mirror-world counterpart forever? There's only one way to find out!