Production. Copper. Ball mills, which grind copper ores to small sizes...
Picryl description: Public domain photo of an industrial building, factory or warehouse, free to use, no copyright restrictions image.
Production. Copper. A ball mill which brings copper ores to fine sizes...
Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A black and white photo of a machine in a factory. Office of War Infor...
Actual size of negative is E (approximately 2 1/4 x 2 1/4 inches). Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Divisi... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More
A true description of the Lake Superior country, its rivers, coasts, b...
This descriptive discussion of the Lake Superior country emphasizes geographical features and is directed primarily towards those interested in locating and exploiting the region's mineral deposits of copper an... More