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[Photograph 2012.201.B0234.0114_02] (open access)

[Photograph 2012.201.B0234.0114_02]

Page of text from the article "Electrolytic Copper: How the Chile Exploration's Mine at Chuquicamata Yields Its Ore" with a photograph illustrating the "open cut method" of mining.
Date: September 1931
Creator: unknown
System: The Gateway to Oklahoma History