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紀元二千六百年 - 2600 Imperial Year = 1940
橿原神宮奉納 - Dedication/Offerring of Kashihara Jingū https://en.wikipedia.org/wiki/Kashihara_Shrine
武道大會 - Budo Tournament
参加記念章 - Participation Commemorative Badge
八月十六日 - August 16
帝国在郷軍人會 - Imperial Military Reservist Association