Source: Superman vol.1 #165 (1963)
Reign of the Supermen #112: Lion of Steel, even though that story too had him tangle with some version of Circe, the sorceress of Greek myth. In THAT story, Circe was the descendent of the historical Circe who was actually an alien. In THIS story... well, let's not get ahead of ourselves. All you need to know for now is that Lana Lang is planning to excavate various sites on the Isle of Crete to find Circe's tomb, while Lois Lane hopes to steal her thunder by being the first woman in space.
Two weeks later, both girls are doing their thing, and Superman sees a meteor heading straight for Lois' Mercury capsule. "The meteor is as good as vaporized! Beat it, Krypto! I'll handle this myself!" Dang, Supes. Is that how you treat your dog? Why have him on the case at all? (Because he's part of the "solution" to this story, this is the Silver Age.)
SILVER AGE REVEAL #1: The last 24 hours have been observed by new members of the Superman Revenge Squad who unbeknownst to us, hit Superman with the (failed?) powerlessness ray responsible for him not destroying that meteor on the first try.
SILVER AGE REVEAL #3: Proty II sat on his head.
SILVER AGE REVEAL #4: "The Man of Steel" isn't just a nickname; Superman actually has magnetic poles like a bar of metal.
Well it worked, didn't it? That weapon was junked rather than perfected, and the Squad members responsible were demoted.