Public domain
Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. One of the steps in reducing fluid extracts to solid extracts
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. One of the steps in reducing fluid extracts to solid extracts. 1943-01-01. Siegel, Arthur S.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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