5 Free Images of Vertical Transport Infrastructure

historyhistorical1933 in tennesseeconstruction of the norris damhigh-resolution tiff images from the national archives and records administrationshaftmine shafts in the united states
Shaftmen at the mouth of the vertical test shaft for examination of substrata at Norris Dam site. - NARA - 532672
historicalhistory
Shaftmen coming out of the test shaft at Norris Dam site. - NARA - 532669
historicalhistory
Shaftmen at mouth of the test shaft at Norris Dam site. - NARA - 532671
historicalhistory
Shaftmen coming out of test shaft at Norris Dam site. - NARA - 532670
historicalhistory
Shaftmen coming out of the test shaft at Norris Dam site. - NARA - 532669
historicalhistory
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