Magic Lantern Slides
Lantern Slides of Bulgaria
Copper Mine: Crushing and Smelting Plant
Bulgaria. Copper Mine: Crushing and Smelting Plant; View East in Isker Valley, Balkan Mountains. (July 1930)
This work has been identified with a Creative Commons Public Domain Mark 1.0.
Since November 20, 2018
Copper Mine, Crushing and Smelting, Isker Valley, Balkan Mountains, Bulgaria, Lantern Slides
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