| Issue | #2 |
| Published | Fall 1940 |
| Cover Price | 0.10 USD |
| Pages | 68 |
| Editing | Victor Fox |
| Characters | The Green Mask [Michael Shelby]; Domino [Don] |
| Pencils | Walter Frehm? |
| Inks | Walter Frehm? |
| Characters | Green Mask [Michael Shelby]; Sartor (first appearance; villain; death) |
| Pencils | Walter Frehm? |
| Inks | Walter Frehm? |
| Characters | Green Mask [Michael Shelby] |
| Pencils | Walter Frehm? |
| Inks | Walter Frehm? |
| Reprinted | from MYSTERY MEN COMICS #8 |
| Characters | Green Mask [Michael Shelby] |
| Pencils | Walter Frehm? |
| Inks | Walter Frehm? |
| Reprinted | from MYSTERY MEN COMICS #9 |
| Characters | Green Mask [Michael Shelby] |
| Pencils | Walter Frehm? |
| Inks | Walter Frehm? |
| Reprinted | from MYSTERY MEN COMICS #10 |
| Script | Wing Walters |
| Letters | typeset |
| Pencils | Klaus Nordling |
| Inks | Klaus Nordling |
| Reprinted | from MYSTERY MEN COMICS #6 |
| Script | Will Eisner? |
| Pencils | George Tuska |
| Inks | George Tuska |
| Reprinted | from MYSTERY MEN COMICS #5 |
| Script | Fred Schwab |
| Pencils | Fred Schwab |
| Inks | Fred Schwab |
| Letters | Fred Schwab |
| Pencils | Art Peddy? |
| Inks | Art Peddy? |
| Reprinted | from MYSTERY MEN COMICS #6 |