Title: "Vice Admiral Chuichi Nagumo". Imperial Japanese Navy Portrait photograph, taken circa 1941-42, when he was commander of the First Air Fleet. Original photograph was in the files of Rear Admiral Samuel Eliot Morison, USNR. U.S. Naval History and Heritage Command Photograph.
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Naval History and Heritage Command - Photo NH 63423 - <a rel="nofollow" class="external free" href="http://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/NH-63000/NH-63423.html">http://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/NH-63000/NH-63423.html</a>