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Arthur Roberts shaftman on test drilling at the Norris Dam site. NARA .tif Scope and content General notes Local identifier Tennessee Valley Authority NARAAuthor Hine Lewis Wickes Photographer File ArthurRoberts shaftmanontestdrillingattheNorrisDamsite NARA tif tif File ArthurRoberts shaftmanontestdrillingattheNorrisDamsite