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Keywords from Image Description:
Charbonnage des Quatre Jean puits aeration. alt source exifheading Quatre Jean Puits br Puits des Vaches ou Puits de Ventilation br Ancien puits d'aration Puits des Vaches du Charbonnage des QuatreJean QueueduBois fr BeyneHeusay Ancient air flood pit Cow Pit of the QuatreJean coal mine in QueueduBois BeyneHeusay Belgium Own