Der Onyxknopf
| MPAA Rating: | NR |
| Genre: | Crime, Drama |
| Country: | Germany |
| Produced By: | Joe May |
| Directed By: | Joe May, Hans Oberländer |
| Written By: | Joe May, Ewald André Dupont |
| Cast: | Eva Maria, Rudolf Lettinger, Bruno Kastner, Hugo Flink, Fritz Schulz, Leopoldine Konstantin, Max Landa |
| In Theaters: | Sep 28, 1917 |
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