Copper Mine: Crushing and Smelting Plant

Loading...
Thumbnail Image
Issue Date
1930-07-01
Authors
Publisher
Keywords
Copper Mine , Crushing And Smelting , Isker Valley , Balkan Mountains , Bulgaria , Lantern Slides
Abstract
Bulgaria. Copper Mine: Crushing and Smelting Plant; View East in Isker Valley, Balkan Mountains. (July 1930)
Description
DOI