Foto de stock - 10 July 2020, Saxony, Freiberg: A mine train stands in front of the research and training mine ""Reiche Zeche"" of the TU Bergakademie Freiberg. The 4th Saxon State Exhibition ""SilberBoom"" is open to visitors from 11 July to 1 November 2020. Photo: Sebastian Kahnert/dpa-Zentralbild/dpa. - Freiberg/Saxony/Germany

Imagen: 10 July 2020, Saxony, Freiberg: A mine train stands in front of the research and training mine ""Reiche Zeche"" of the TU Bergakademie Freiberg.

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