| Issue | #250 |
| Published | July 1958 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Whitney Ellsworth; Jack Schiff (managing editor); Mort Weisinger (story editor); George Kashdan (story editor) |
| Characters | Lorac |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Stan Kaye |
| Script | Jack Schiff |
| Pencils | Henry Boltinoff (signed) |
| Inks | Henry Boltinoff (signed) |
| Letters | Henry Boltinoff |
| Characters | Superboy [Clark Kent]; Lorac-K7; Pa Kent; Ma Kent; Prof Lang; Mayor Brook; Principal Sands; Lana Lang; Inspector Edaw |
| Synopsis | A criminal from the 30th Century comes to Smallville to get Cobalt to build a cobalt bomb, and disguises himself as a local resident and Superboy has to figure out which one. |
| Genre | superhero |
| Script | Bill Finger |
| Pencils | John Sikela |
| Inks | John Sikela |
| Notes | Original version shows Clark watching tv. In reprint Clark receives pictures from the future on the radio. |
| Reprinted | in 80 Page Giant (DC, 1964 series) #10 (May 1965) |
| Genre | science fiction |
| Notes | Ad for Showcase #15 starring Space Ranger. |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Notes | Palisade Park ad on bottom half of page. |
| Genre | puzzle page |
| Pencils | Martin Naydel |
| Inks | Martin Naydel |
| Letters | Martin Naydel |
| Characters | Green Arrow [Oliver Queen]; Phantom of France; Green Arrow (Mexico); Green Arrow (Japan); Green Arrow (Switzerland); Bowman from Britain; Bowman of the Bush; Green Arrow (Polynesia); "Counterfeit" Carson |
| Synopsis | "Counterfeit" Carson attempts to crash a party by the Green Arrows of the world to get his revenge. |
| Genre | superhero |
| Script | Ed Herron ?; Dave Wood ? |
| Pencils | Jack Kirby |
| Inks | Jack Kirby; Roz Kirby |
| Notes | 1st Silver Age Green Arrow. Bill Finger writer credit removed based on discussion with Bob Hughes. [Mike Nielsen 5/2007] |
| Reprinted | in DC Special Blue Ribbon Digest (DC, 1980 series) #23 (July 1982); in Green Arrow by Jack Kirby, The (DC, 2001 series) #nn; in Showcase Presents Green Arrow (DC, 2006 series) #1 |
| Script | Morris Waldinger |
| Pencils | Morris Waldinger |
| Inks | Morris Waldinger |
| Letters | Morris Waldinger |
| Script | Morris Waldinger |
| Pencils | Morris Waldinger |
| Inks | Morris Waldinger |
| Letters | Morris Waldinger |
| Genre | gag |
| Characters | Dr. Rush |
| Genre | superhero |
| Pencils | Ramona Fradon |
| Inks | Ramona Fradon |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |