Public domain
Great Falls, Montana. Furnace refinery of Anaconda Copper Mining Company. Spraying bone ash on the forms in which the refined copper will be poured; this deposit of bone ash prevents the melted copper from burning or sticking to the molds
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineGreat Falls, Montana. Furnace refinery of Anaconda Copper Mining Company. Spraying bone ash on the forms in which the refined copper will be poured; this deposit of bone ash prevents the melted copper. 1942-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
Similar works
Untitled photo, possibly related to: Phelps Dodge refining company, El Paso, Texas. Casting copper ingots
Buffalo, New York. Symongton-Gould, makers of tank, ship and railroad parts. Woman operating a charging machine. She works the machine by hand controls behind a partition, and has just dipped red hot metal into water, causing steam
Walter M. Gaylord dripping the boiled-down maple sap to see if it has reached correct consistency. Waitsfield, Mad River Valley, Vermont
Untitled photo, possibly related to: Cotton from the bale is transported by belt to machine for making cotton bats. Weighing device is so sensitive that it directs the cotton from one machine to another. Laurel, Mississippi
Tapping a blast furnace, Pittsburgh, Pennsylvania
Untitled photo, possibly related to: Buffalo, New York. Half-empty hold of a grain boat from Deluth unloading wheat at a grain elevator on the Erie Canal. In middle ground is the "leg" which draws grain into the tower by means of an endless belt of buckets