Bibframe Instance
TitleAnaconda smelter, Montana. Anaconda Copper Mining Company. Poling in the refining furnace. Wooden poles are plunged into the molten copper; there is a great evolution of gases when this is done and the excess oxygen combines with the carbon of the wood and passes off as carbon monoxide. This refining of blister copper is based upon the fact that oxygen has a stronger affinity for the impurities in the charge than it has for copperNotePhysical details: nitrate Applies To: Applies To: all Title and other information from caption card.More information about the FSA/OWI Collection is available atCould not render: bf:electronicLocatorDimensions2 1/4 x 2 1/4 inches or smaller.Extent1 negativeProvision ActivityPublication: Montana 1942 Publication: 1942 Sept Usage And Access PolicyNo known restrictions. For information, see U.S. Farm Security Administration/Office of War Information Black & White PhotographsCould not render: bf:electronicLocatorAcquisition SourceDLC Stock Number:LC-DIG-fsa-8d22640 (digital file from original neg.) DLC Stock Number:LC-USW3-008898-E (b&w film nitrate neg.) 