Action Comics #305 (1963)

The first part of this issue supposes different scenarios in which Superman does not use the secret identity of Clark Kent or what would happen if his identity were revealed. The second part 'The girl Who Hated Supergirl,' tells the story of the one person in Midvale who doesn't love "the Maid of Steel." Why Superman Needs A Secret Identity! (Superman) -- 2. Super-Turtle (gag strip by Henry Boltinoff) -- 3. The Girl Who Hated Supergirl! "Well gentlemen, I told you I would deliver the secret of Superman's identity for a cool million! Take a peek through this trick mirror!""Wow! So he's Clark Kent! We'll trap him at his office with this Gold Kryptonite!"