ROYAL AIR FORCE RECRUITMENT, 1939-1945. - Medical tests for aircrew candidates in London. The candidate, with eyes shut, listening to the vibrations of three tuning forks of differing pitch at varying distances to determine the frequency range of his hearing

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Size: 2565px × 1949px
Photo credit: © piemags/ww2archive / Alamy / Afripics
License: Licensed
Model Released: No

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