See also https://asiamedals.info/threads/japanese-officers-with-naval-academy-graduation-badges.27099/#post-360332
Signed photo, 1928.
From 1919-1921, Yamamoto attended Harvard University and went on to serve as Japan’s naval attaché in Washington.
Harris & Ewing Inc., Washington, D.C.
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山本五十六
山本五十六海軍大将