| Issue | #11 |
| Published | December 1939 - January 1940 |
| Cover Price | 0.10 |
| Pages | 68 |
| Editing | Malcolm Reiss (Editor); William E. Eisner (Art Director); S. M. Iger (Feature Editor) |
| Notes | Appears to be a science fiction cover and has nothing to do with the ZX-5 story inside. |
| Genre | spy |
| Pencils | Lou Fine |
| Inks | Lou Fine |
| Notes | Appears to be a science fiction cover and has nothing to do with the ZX-5 story inside. |
| Characters | Sheena; Bob Reynolds; Mr. Barker; Inez Barker; Chim |
| Genre | jungle |
| Script | ? [as W. Morgan Thomas] |
| Pencils | Bob Powell |
| Inks | Bob Powell |
| Characters | Peter Pupp; Tinymite; Fooy on Yu; |
| Genre | humor |
| Characters | The Hawk; Jeremy; Ogly; Caprini |
| Genre | period |
| Script | ? [as Willis Resnie] |
| Pencils | Will Eisner |
| Inks | Will Eisner |
| Characters | Bobby |
| Genre | humor |
| Script | S.M. Iger |
| Pencils | S.M. Iger |
| Inks | S.M. Iger |
| Notes | 1/2 page of "Prize Winners in August-September 1939 Jumbo Comics Gag Contest" appear above "Bobby." |
| Characters | Spencer Steel; Nora Steel; "Pixie" Panto; Inga; Phillip Danbury; Nancy Danbury; Count Georgi Puskri; Alonzo Snead |
| Genre | detective |
| Script | ? [as Dennis Colbrook] |
| Pencils | Klaus Nordling? |
| Inks | Klaus Nordling? |
| Notes | Note: "Colebrook" is spelled without the "E". Different style from #10. But it's still a shop job, and you can see some panels done by Tuska...overall feel...Klaus Nordling. |
| Characters | Ken Hammond; Dick Walsh - the Leopard Man; Nikki-Tikki; Mongga; Kuri |
| Genre | jungle |
| Script | Lin Davies |
| Pencils | Bob Powell |
| Inks | Bob Powell |
| Letters | Typeset |
| Characters | Stuart Taylor; Melani; Moki; Dr. Hayward; Laura |
| Genre | science fiction |
| Script | ? [as Curt Davis] |
| Pencils | Lou Fine |
| Inks | Lou Fine |
| Notes | Hints of George Brenner in the art. |
| Characters | ZX-5; King Genghis; Major Hastings; General Kutani; |
| Genre | spy |
| Script | ? [as Major Thorpe] |
| Pencils | Bob Powell? |
| Inks | Vern Henkel? |
| Notes | Same artwork as in #10 - a mixture: including Bob Powell and perhaps Witmer Williams, Frank Frollo, or Vern Henkel. Caniff swipes. |
| Characters | Wilton; Wiley; Snorty |
| Genre | western |
| Script | ? [as Fred Sande] |
| Pencils | Lou Fine |
| Inks | Lou Fine |
| Characters | Inspector Dayton; Paul Goodshaw; Wini Damien; Ella Fitzhugh; Gene |
| Genre | detective |
| Script | ? [as George Thatcher] |
| Pencils | Bob Powell? |
| Inks | Vern Henkel? |
| Notes | Powell and/or Henkel - I can't tell, but I'm more inclined to think is might not be Powell. Other possibilities: Frollo and/or Zolnerowich. |
| Characters | Vampa; Albert de Morcerf; Jocopo; Count of Monte Cristo |
| Genre | period |
| Script | ? [as Jack Cortez] |
| Pencils | Lou Fine |
| Inks | Lou Fine |