Public domain
Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Making wax capsules used for silver nitrate solution
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. Making wax capsules used for silver nitrate solution. 1943-01-01. Siegel, Arthur S.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.