Public domain

Inoculation of guinea pig. Experimental farm of Department of Agriculture, Prince George's County, Maryland

United States. Resettlement Administration, Mydans, Carl · 1935-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

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prince georges county nitrate negatives maryland experimental farms united states

Credit lineInoculation of guinea pig. Experimental farm of Department of Agriculture, Prince George's County, Maryland. 1935-01-01. United States. Resettlement Administration, Mydans, Carl. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.

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