Superboy #53

From 1956, this DC ten-center features a striking Curt Swan and Ray Burnley cover that sets up a tantalizing mystery: a mature Superman stands confidently in the foreground while an elderly couple — clearly worried — peers at a television screen displaying an image of Superboy. The speech balloons make the puzzle explicit, hinting that Superboy has been flung into the future while Superman has appeared in his place, leaving the Kents baffled for two days. Inside, writers Jerry Coleman and Otto Binder team with artist Curt Swan to deliver "The Suit of Steel" and more, making this a thoroughly entertaining slice of Silver Age storytelling.