The Engineer's Thumb
| MPAA Rating: | NR |
| Genre: | Crime, Drama, Mystery, Short |
| Country: | United Kingdom |
| Directed By: | George Ridgwell |
| Written By: | P.L. Mannock, Arthur Conan Doyle, Geoffrey Malins |
| Cast: | Hubert Willis, Mercy Hatton, Eille Norwood, Ward McAllister, Bertram Burleigh |
| In Theaters: | Mar 01, 1923 |
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