Public domain
Untitled photo, possibly related to: Rotary vacuum filter used for removing cyanide solution containing gold from the tailings. Gold mine at Mogollon, New Mexico
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineUntitled photo, possibly related to: Rotary vacuum filter used for removing cyanide solution containing gold from the tailings. Gold mine at Mogollon, New Mexico. 1940-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.