Public domain
Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling ampoules with an arsenical drug in powder form under protected conditions
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineParke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling ampoules with an arsenical drug in powder form under protected conditions. 1943-01-01. Siegel, Arthur S.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.