Obverse
防空 - Air Defense
reverse
昭和十二年度 - 1937
阪神防空演習 - Hanshin Air Defense Maneuvers
田辺青年団 - Tanabe Youth Group https://asiamedals.info/forums/youth-league-seinen-dan-badges.618/
See also badge with similar design of obverse https://asiamedals.info/threads/tak...fense-maneuvers-diligent-service-badge.24123/