Public domain
Production. Steam power plant equipment. Excess metal is chipped away on a welded seam on the inside of a high-pressure boiler drum. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Ch
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Credit lineProduction. Steam power plant equipment. Excess metal is chipped away on a welded seam on the inside of a high-pressure boiler drum. Steam boilers and other power-house equipment to supplement the hyd. 1942-01-01. Palmer, Alfred T., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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