Public domain
Detroit, Michigan. New method of making x-ray photographs size 4x5 inches instead of larger. Used at the Herman Kiefer Hospital for Communicable Diseases to show various stages of tuberculosis. Comparison of the standard x-ray film holder and the 4x5 film holder used in the x-ray camera
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Credit lineDetroit, Michigan. New method of making x-ray photographs size 4x5 inches instead of larger. Used at the Herman Kiefer Hospital for Communicable Diseases to show various stages of tuberculosis. Compar. 1939-01-01. Siegel, Arthur S.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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