1936 Print Copper Ore Pine Oil Anaconda Copper Mining Miner Prospecting FZ2 XEDA3 Keywords specific to this image:

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Best known for producing an array of drawings at the Western Front during World War I

There are a few small tears in the left margin of this ad

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1936 Print Copper Ore Pine Oil Anaconda Copper Mining Miner Prospecting FZ2 XEDA3 Keywords specific to this image:This is an original 1936 halftone print of copper being pulled from the sand fine ore at the Anaconda Copper Mining Company. The caption writes, "Copper is concentrated by flotation out of a mud of sand fine ore, agitated and aerated, the cupriferous particles, though they are the heaviest, are borne to the surface in a bubbly froth, held together with pine oil, for which they have an affinity. This is skimmed off; the rest is waste." The Anaconda