Tapping the furnace

Tapping the furnace of a Southern tin smelter in which pure tin is extracted from the raw ore of South American mines. Here tin is drawn off into floats which weigh about eighteen tons when filled. The metal is then conveyed to polling kettles, where dross or skimmings are drawn off and forwarded to another furnace for re-melting

Courtesy Library of Congress, Prints & Photographs Division, FSA/OWI Collection, reproduction number, LC-USE6-D-006727.

This photograph is by carnkie and was uploaded January 1^st 2009. © carnkie please do not copy or distribute without prior express permission.

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