Superman #126 1997

Superman #126, published by DC in January 1959, features "Superman's Hunt for Clark Kent!" where a Kryptonite experiment causes Superman to lose his memory, leading him to forget his secret identity. He then embarks on a quest to rediscover who Clark Kent is. This Silver Age issue also includes "The Two Faces of Superman!" and is notable for a rare in-comic appearance of the classic "It's a bird! It's a plane!" line and a humorous moment where Superman resembles Alfred E. Neuman.