air defense corp branch badge

See also https://asiamedals.info/threads/1935-air-defense-maneuvers-toshima-ward-air-raid-defense-corps-nishisugamo-no-1-branch-participation-badge.25044/ Obverse Tokyo City Emblem with superimposed Army Star 防空演習参加章 - Air Defense Maneuvers Participation Badge reverse 豊島區防護團 - Toshima...

Obverse 関東防空演習 - Kanto [Region] Air Defense Maneuvers 参加章- Participation Badge reverse 皇紀二五九三年 - 1933 瀧野川區防護分團 - Takinogawa Ward Air Defense Corps

山彷分團第三回記念 - Yamaya Branch No.3 Commemorative 防空 - Air Defense

Obverse 記念 - Commemorative 防 - Air Defense reverse 中野区防護團 - Nakano Ward Air Defense Corps 功勞章 - Merit Badge 第四分團 - 4th Branch 紀元二五九七 - 1937

Size 33 x 21 mm. Obverse 防空演習 - Air Defense Maneuvers 参加章 - Participation Commemorative Badge reverse 昭和十一年度 - 1936 大阪市 - Osaka City 第三西野田防護分團 - 3rd Nishinoda Air Defense Corps Branch

Obverse 丸山防護分團 - Maruyama Air Defense Branch 第十一支部 - 11th Team

See also https://asiamedals.info/threads/3rd-air-defense-maneuvers-abeno-air-defense-corp-branch-commemorative-badge.25052/ Obverse 阿 for 阿倍野区 - Abeno Ward, Osaka reverse 昭和十二年 - 1937 阿倍野防護分團 - Abeno Air Defense Corp Branch

See also https://asiamedals.info/threads/1933-kanto-large-air-defense-maneuvers-takinogawa-ward-air-defense-corps-participation-commemorative-watch-fob.27515/ ; Koishikawa Ward Air Defense Corps badges...

Obverse 参加章 - Participation Badge 東江防護分團 - Agarie Air Raid Defense Corps /another possible reading of 東江 - Higashie/ reverse 近畿防空演習 - Kinki Air Defense Maneuvers 昭和力年七月 - July 1934

12-13 October, 1935. Obverse 御台覧 - Imperial Inspection 記念 - Commemorative Reverse 湊區防護團 - Minato Ward Air Defense Corps 平野分団 - Heiya Branch Case. Made by Hirayama workshop https://asiamedals.info/threads/badges-of-hirayama-shoukai-kobe.21361/