2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/7721Date scanned: 2001-03-13.Identifier: NMHFM-155.Unmounted; text on verso.Held in the National Mining Hall of Fame and Museum.Donor: Ralph M. Parsons Company.View showing installation of converter #4. Morenci Extension 8/4/43 #29A.Rights management statement available at: http://library.mines.edu/digital/rights.htmlPhelps Dodge CorporationCopper mines and miningCopper ore processing plantsMineral processingStillImage