Public domain
Gold prospector cooking mercury with dirty flour gold. The flour gold which is in small, almost powder flakes, will attach itself to the mercury as the water boils away. Pinos Altos, New Mexico
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineGold prospector cooking mercury with dirty flour gold. The flour gold which is in small, almost powder flakes, will attach itself to the mercury as the water boils away. Pinos Altos, New Mexico. 1940-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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