Picryl description: Public domain image related to industrialrevolutio...
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Rotary vacuum filter used for removing cyanide solution containing gol...
Public domain photograph - New Mexico, United States, free to use, no copyright restrictions image - Picryl description
Large tanks used for mixing powdered gold ore with cyanide solution to...
Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.
Workman weighing sample of gold ore and cyanide solution to determine ...
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.
![[Black fighter pilot series: "Escape kits" (cyanide) being distributed to fighter pilots at air base in southern Italy, 1945]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTkvMDkvMjYvYmxhY2stZmlnaHRlci1waWxvdC1zZXJpZXMtZXNjYXBlLWtpdHMtY3lhbmlkZS1iZWluZy1kaXN0cmlidXRlZC10by1maWdodGVyLTRjZGJhMi0xMDI0LmpwZw%3D%3D/40/42/webp "[Black fighter pilot series: \"Escape kits\" (cyanide) being distributed to fighter pilots at air base in southern Italy, 1945]")
[Black fighter pilot series: "Escape kits" (cyanide) being distributed...
Photo shows (seated): Theodore G. Lumpkin, Jr. Standing (left to right): Joseph L. "Joe" Chineworth, Memphis, TN, Class 44-E; Robert C. Robinson, Asheville, NC, Class 44-G; Driskell B. Ponder, Chicago, IL, Clas... More
A black and white photo of a large wheel. Great Depression Era, New Me...
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A black and white photo of a large wheel. Great Depression Era, New Me...
Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.
Large tanks used for mixing powdered gold ore with cyanide solution to...
Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.
Precipitation tanks at gold mine where gold is precipitated out of cya...
Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.
A black and white photo of a machine in a factory. Great Depression Er...
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A black and white photo of a building under construction. Great Depres...
Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.