Knock on the Window, the Door Is a Jamb
| MPAA Rating: | NR |
| Genre: | Animation, Short |
| Country: | United States |
| Produced By: | William Randolph Hearst |
| Directed By: | Grim Natwick, Gregory La Cava, Burt Gillett |
| Written By: | Rudolph Dirks |
| In Theaters: | Apr 17, 1920 |
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