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GipsbruchLbtheen. de Ansicht des zum Schachtbau des FriedrichFranzSchachtes Lbtheen trockengelegten Gipsbruches Lbtheen Alte Postkarte author Fotograf unbekannt Recherche Bearbeitung Dr Gnter Pinzke PDold Gypsum quarry Lbtheen Lbtheen potash mine
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