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This is the sender of the photos -
Christian Lorkowski, he is apprentice at West colliery in Kamp-Lintfort
(Germany) - in the practice gallery of that colliery. The tunnel is situated
at the surface, but it is equipped as if it was in a depth of 1000 metres and
more. That makes it possible to simulate real working conditions and situations for
the training of apprentices and other employees of the colliery.
© Christian Lorkowski
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