![The age of coal](https://clauss.museum/bl-content/uploads/pages/980392504b018a2c63c27b2a043d04cc/zeitalter-der-kohle-print.jpg)
The age of coal
The exhibition on coal mining in the Ruhr region, which unfortunately no longer exists, has been digitally archived with outstanding image quality and can still be visited and experienced via the following link: www.zeitalterderkohle.de
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