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Butte, Montana. Anaconda Copper Mining Company. First step in making bits for a pneumatic drilling machine is to heat a rod of the proper size; this rod is placed into machine which punches and forms the bit; this process is called drop forging. Bit plant of the Anaconda Copper Mining Company
Content Provider | Library of Congress - Photographs |
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Spatial Coverage | Montana--Silver Bow County--Butte |
File Format | JPG / JPEG |
Language | English |
Part of Series | Farm Security Administration/Office of War Information Black-and-White Negatives American Memory |
Requires | HTML5 supported browser |
Access Restriction | Open |
Subject Domain (in LCSH) | United States--Montana--Silver Bow County--Butte. |
Content Type | Image |
Resource Type | Photograph |