Public domain
Pittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Miner putting powder charge into a face of coal which is to be "shot down"
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit linePittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Miner putting powder charge into a face of coal which is to be "shot down". 1942-01-01. Collier, John, Jr., Collier, John. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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