| Issue | #90 |
| Published | September-October 1957 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Whitney Ellsworth (editor-in-chief); Jack Schiff (managing editor); Murray Boltinoff (associate editor); George Kashdan (associate editor) |
| Characters | Batwoman [Kathy Kane]; Batman [Bruce Wayne]; Superman [Clark Kent]; Robin [Dick Grayson] |
| Genre | superhero |
| Pencils | Curt Swan |
| Inks | Ray Burnley |
| Reprinted | in World's Finest Comics Archives (DC, 1999 series) #2; in Showcase Presents: World's Finest (DC, 2007 series) #1 |
| Characters | Batman [Clark Kent]; Robin [Dick Grayson]; Superman [Clark Kent]; Batwoman [Kathy Kane]; Elton Craig; Jor-El (flashback; cameo); Lara (flashback; cameo); Perry White (cameo); Lois Lane (cameo) |
| Synopsis | Batwoman takes a capsule created by Jor-El that gives her super powers for 24 hours. She uses that time to try to find out Batman and Superman's secret identities. |
| Genre | superhero |
| Script | Edmond Hamilton |
| Pencils | Dick Sprang |
| Inks | Stan Kaye |
| Notes | Klein/Reed incorrectly list Paris inks. The capsule that Batwoman takes was hidden by Elton Craig during the events of World's Finest Comics (DC, 1941 series) #87's story "The Reversed Heroes". |
| Reprinted | in World's Finest Comics (DC, 1941 series) #161 (October 1966); in World's Finest Comics Archives (DC, 1999 series) #2; in Showcase Presents: World's Finest (DC, 2007 series) #1 |
| Genre | humor |
| Script | Henry Boltinoff (signed) |
| Pencils | Henry Boltinoff (signed) |
| Inks | Henry Boltinoff (signed) |
| Letters | Henry Boltinoff |
| Genre | superhero |
| Pencils | George Papp |
| Inks | George Papp |
| Notes | red hat |
| Genre | fact |
| Script | Jack Schiff |
| Pencils | Ruben Moriera |
| Inks | Ruben Moriera |
| Letters | typeset |
| Characters | Dan Hunter |
| Genre | western; period |
| Pencils | Fred Ray |
| Inks | Fred Ray |