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1923 462 - + Bottrop area 462-- Bottrop + Umg. Bergbau Bergmann life Bergmannsleben Bergwerk Berufe Berufe - Bergbau Boot Boote Bottrop Brücke Deutschland Germany Grubenarbeiter Hüttenwerk Industriegebiet Kaliwerk Kumpel Köhler Mine Mineria Most Motive PLZ 462 Prosper I Schacht Schiff Schiffe Segelboot Segelboote Soziales Leben Statek Tagebau Zeche Zeche Prosper I am Kanal barge barges boat boats bridge bridge ponte buddy charburner charcoal burner cider coal mining cored hole historically historisch hole cored industrial area industrie minière industry of Mining iron and steel mill mine mine shaft miners minería mining mining industry motives occupations - mining on the canal open mine shaft open pit opencast minig opencast pit pit opencast Minig pont ponte port potash professions puerto sailboat sailboats shaft ship ships social life steamboat strip mining surface mining underground