| Original title | Han skal duellere |
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| Danish title | Han skal duellere |
| Other titles | Den sorte Haand |
| Leikstjórn | Lau Lauritzen Sr. |
| Screenplay | Alfred Kjerulf |
| Director of Photography | Sophus Wangøe |
| Appearance | Rasmus Christiansen, Ragnhild Sannom, Lauritz Olsen, Louis Melander |
| Land | Danmark |
| Technical info | 343 meter, 35 mm, Stum |
| Danish theatrical release | 28.07.1919 |
| Cinemas | Biograf-Theatret |
| Kommentar | Nordisk neg. nr. 1646. |
Companies |
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| Production company | Nordisk Films Kompagni |
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Instruktion |
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| Instruktion | Lau Lauritzen Sr. |
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Manus |
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| Manus | Alfred Kjerulf |
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Foto |
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| Foto | Sophus Wangøe |
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Medvirkende |
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| Professor Tycko Gummesen | Rasmus Christiansen |
| Minna, professorens datter | Ragnhild Sannom |
| Baron Blinkenberg | Lauritz Olsen |
| Cæsar Bonarine | Louis Melander |
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