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On July 7, 1990, Hans Martin Köster documented a detailed exploration of the Maxstollen in Briloner Eisenberg. Production and camera by Hans Martin Köster, editing by Christoph Köster. Link to online archive provided.
On July 7, 1990, Hans Martin Köster documented a detailed exploration of the Maxstollen in Briloner Eisenberg. Production and camera by Hans Martin Köster, editing by Christoph Köster. Link to online archive provided.
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