Public domain
Minneapolis, Minnesota. Marvin Goldstein, an infantile paralysis patient, showing control of extensor muscles of the back at a class for technicians and doctors conducted by Sister Kenny
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineMinneapolis, Minnesota. Marvin Goldstein, an infantile paralysis patient, showing control of extensor muscles of the back at a class for technicians and doctors conducted by Sister Kenny. 1943-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.