Reverse is marked with something that resembles the star (or Mitsubishi group symbol) and crescent https://asiamedals.info/threads/pam...sko-japonskoj-vojny.13275/page-12#post-345829
Obverse reads
帝国在郷軍人會 - Imperial Military Reservist Association
中川村分會 - Nakagawa Village Branch of Association
特別會員之章 - Special Member's Badge