| Issue | #52 |
| Published | April-May 1949 |
| Cover Price | 0.10 |
| Pages | 52 |
| Editing | Whitney Ellsworth |
| Characters | Batman; Robin; Joker. |
| Genre | superhero |
| Pencils | Winslow Mortimer (confirmed by Mortimer) |
| Inks | Winslow Mortimer (confirmed by Mortimer) |
| Letters | Ira Schnapp (credit by O'Hearn/Desris) |
| Characters | Batman [Bruce Wayne]; Robin [Dick Grayson]; V: The Thinker (intro; not the Flash villain). |
| Genre | superhero |
| Script | Bill Finger |
| Pencils | Bob Kane (Batman & Robin figures only); Lew Schwartz |
| Inks | Charles Paris (verified by Paris) |
| Letters | Ira Schnapp (credit by O'Hearn/Desris) |
| Characters | Batman [Bruce Wayne]; Robin [Dick Grayson]; Prof. Carter Nichols; Olaf Erickson and other Vikings (intro) |
| Synopsis | When Bruce & Dick visit the Gotham City museum, they note an image of a Viking that looks like Bruce Wayne.....and who is labeled a coward, so they visit Carter Nichols to go back in time to discover the truth. |
| Genre | superhero |
| Script | Bill Finger? Edmond Hamilton? |
| Pencils | Bob Kane (signed) |
| Inks | Charles Paris (verified by Paris) |
| Notes | Revised pencil credit verified by Craig Delich (Nov. 2005). Credit for Lew Schwartz deleted. Synopsis added by Craig Delich 11-06-07. |
| Reprinted | In Batman (DC, 1940 series) #193 (July-August 1967). |
| Genre | teen humor |
| Script | Henry Boltinoff (signed) |
| Pencils | Henry Boltinoff (signed) |
| Inks | Henry Boltinoff (signed) |
| Letters | Henry Boltinoff |
| Genre | humor |
| Script | Henry Boltinoff (signed) |
| Pencils | Henry Boltinoff (signed) |
| Inks | Henry Boltinoff (signed) |
| Letters | Henry Boltinoff |
| Genre | adventure |
| Pencils | Raymond Perry |
| Inks | Raymond Perry |
| Letters | typeset |
| Characters | Batman |
| Genre | superhero; humor |
| Script | Martin Naydel (signed) |
| Pencils | Martin Naydel (signed) |
| Inks | Martin Naydel (signed) |
| Characters | Batman [Bruce Wayne]; Robin [Dick Grayson]; V: Joker |
| Genre | superhero |
| Script | Bill Finger (credit by O'Hearn) |
| Pencils | Bob Kane (Batman & Robin figures only); Lew Schwartz |
| Inks | Charles Paris (verified by Paris) |
| Letters | Ira Schnapp (credit by O'Hearn/Desris) |