Public domain
Gilberton, Pennsylvania. A side view of the cone of a Chance coal separator in the Saint Nicholas breaker
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineGilberton, Pennsylvania. A side view of the cone of a Chance coal separator in the Saint Nicholas breaker. 1938-01-01. Dick, Sheldon. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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Gilberton, Pennsylvania. The bottom of the cone vat of a Chance coal separator in the Saint Nicholas breaker, one of the two largest coal breakers in the world