| Issue | #21 |
| Published | March 1949 |
| Cover Price | 0.10 USD |
| Pages | 52 |
| Editing | Stan Lee |
| Notes | First issue with Marvel red circle colophon on cover. All information for this issue from Tom Lammers via the Timely-Atlas list, September 2010. |
| Characters | Patsy Walker; Buzz Baxter |
| Synopsis | Buzz has mailed himself to Patsy. |
| Genre | humor |
| Pencils | Al Jaffee |
| Inks | Al Jaffee |
| Genre | humor |
| Pencils | Al Jaffee |
| Inks | Al Jaffee |
| Genre | humor |
| Pencils | Al Jaffee |
| Inks | Al Jaffee |
| Letters | typeset |
| Letters | typeset |
| Notes | For Patsy Walker Comics for 1 October 1948. Stan Lee, Editor; Martin Goodman, Managing Editor; Jean Goodman, Business Manager. |
| Genre | humor |
| Script | Harvey Kurtzman (signed) |
| Pencils | Harvey Kurtzman (signed) |
| Inks | Harvey Kurtzman (signed) |
| Notes | Signed with "man" character after "Kurtz." |
| Genre | humor |
| Pencils | Ken Bald |
| Inks | Ken Bald |
| Genre | humor |
| Pencils | Al Jaffee |
| Inks | Al Jaffee |
| Genre | humor |
| Pencils | Al Jaffee |
| Inks | Al Jaffee |
| Synopsis | editorial |
| Letters | typeset |
| Genre | humor |
| Pencils | Al Jaffee |
| Inks | Al Jaffee |
| Notes | Patsy reads The Merchant of Venice by William Shakespeare (1600). |