| Issue | #144 |
| Published | January 1968 |
| Frequency | monthly with the exception of Feb., Aug., and Nov. |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Mort Weisinger |
| Characters | Superboy; Hyperboy |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | George Klein |
| Characters | Superboy; Mechanical Mob; Ma and Pa Kent; Jor-El; Lara; Krypto; Hyperboy; Hyperdog; Klypso (all from Trombus) |
| Synopsis | Superboy discovers another Superboy in Smallville, only it's him. The other Superboy tries to convince Clark that Clark is Kirk Quentin and He's the real Clark Kent. |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | George Papp |
| Inks | Chic Stone |
| Notes | inker corrected by Bob Hughes 9/07. Previously given as Frank Springer. |
| Letters | typeset |
| Notes | Letters from Kenny Haney, Richard Butler, Phil Walton, Michael Devereaux, Leonard Rosenberg, Frank Schaffer, and Betsy Denning. After page 17 of main story. |
| Script | Henry Boltinoff; Eugene Martin (idea) |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Notes | On page before page 18 of main story. |
| Letters | typeset |
| Notes | Promotes titles out in late November 1967. Includes cover repros of Green Lantern #58 and Detective Comics #371. |