The Unknown Purple
| MPAA Rating: | NR |
| Genre: | Mystery |
| Country: | United States |
| Directed By: | Roland West |
| Written By: | Alfred A. Cohn, Paul Schofield, Roland West |
| Cast: | Dorothy Phillips, Brinsley Shaw, Johnny Arthur, Richard Wayne, Alice Lake, Frankie Lee, Stuart Holmes, Helen Ferguson, Ethel Grey Terry, Henry B. Walthall, James Morrison, Mike Donlin |
| In Theaters: | Oct 01, 1923 |
| Runtime: | 1 hour 10 minutes |
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