On-sale date from copyright registration.
Published in cooperation with the National Social Welfare Assembly.
Inside front cover. Previously appeared in DC comics cover-dated May 1959.
Part one is in Action Comics #335 and Detective Comics #349.
Letters from: Paul Laginis, Amy Behrens, Uday Saraiya, C. Alexander, Brian Hoya, Wayne Tanenbaum, Jeff Woods, Jack Stevenson, and Roger O'Connor. Bits of Legionnaire Business from: David Krels (Porcupine Pete), Greg Sanchez (Glass Girl), Betty Borbely (Colorless Kate), Sal Iacopelli (Negative Nell), Greg Kent (Rocket Roy), and Phillip Cano III (Disappearing Dan).
Also, it is acknowledged that Color Kid (who is introduced in this issue) was earlier suggested by Jeff Greenberg.
Script credit per Martin O'Hearn. We formerly credited this reprint to Leo Dorfman.
"A Hall of Fame Classic"
Superboy's measurements are given as: Height 5 foot 10 inches, Weight: 149 pounds, Chest: 40 inches, Waist: 30 inches.