| Issue | #212 |
| Published | May 1955 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Whitney Ellsworth, Jack Schiff (managing editor), Mort Weisinger, George Kashdan (story editors) |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Ray Burnley |
| Characters | Superboy robot (not built by Superboy), Prof Wilson,Angles and Joe |
| Synopsis | When Superboy disappears for a week Prof Wilson builds a robot to take his place. Superboy, meanwhile, after an encounter with a comet, has lost his memory. |
| Genre | superhero |
| Script | Jerry Coleman |
| Pencils | Curt Swan |
| Inks | George Klein |
| Notes | credits by Bob Hughes 8/05 |
| Genre | gag |
| Script | Lit-Win |
| Pencils | Lit-Win |
| Inks | Lit-Win |
| Genre | teen |
| Script | Jack Schiff |
| Pencils | Win Mortimer |
| Inks | Win Mortimer |
| Genre | superhero |
| Pencils | Ramona Fradon |
| Inks | Ramona Fradon |
| Genre | fact |
| Letters | typeset |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Genre | superhero |
| Pencils | George Papp |
| Inks | George Papp |
| Notes | Green Arrow wears red hat |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |