Hubert Blonk Papers. SPC-006-0628-5-1-41
December 31, 1982
Black and white photograph
Scanned at 600 ppi TIFF format, resized to 72 ppi JPEG format.
One of the original air drills used to build Grand Coulee Dam is retained as a historical object.
Archives & Special Collections, Eastern Washington University Libraries.
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Grand Coulee Dam (Wash.); Hydroelectric power plants -- Washington (State); Pneumatic Drills