The Mystery of Room 29
| MPAA Rating: | NR |
| Genre: | Drama, Short |
| Country: | United States |
| Produced By: | William Nicholas Selig |
| Directed By: | Otis Thayer |
| Written By: | Arthur Preston Hankins |
| Cast: | Rex De Rosselli, Harry Lonsdale, Patrick Carson, Walter Roberts, Edgar G. Wynn, Charles Clary, Frank Weed, John Austin, Winifred Greenwood |
| In Theaters: | Jun 06, 1912 |
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