Adventure Comics (1938-) #247

First appearance of the Legion of Super-Heroes! Superboy encounters the Legion of Super-Heroes—super-powered teens from the future who want to initiate the Boy of Steel into the group. But can Superboy pass the tests put before him? Plus two additional stories!

Written By:
Henry Boltinoff, Otto Binder, Jack Miller, France Herron
Pencils:
George Papp, Henry Boltinoff, Al Plastino, Ramona Fradon
Inks:
George Papp, Henry Boltinoff, Al Plastino, Ramona Fradon
Cover By:
Curt Swan, Stan Kaye