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Vereinigtes hoerder kohlenwerk. Vereinigte Hrder Kohlenwerke selfphotographed br original text September Tbachner original upload log page de Vereinigtesh Brderkohlenwerk Tbachner bytes no Hrder Kohlenwerke Eigene Aufnahme September Zeche Schleswig Frderverein Bergbauhistorischer Sttten Ruhrrevier Signs in Dortmund