japanese air defense badge

Obverse 品川區防護團大井第三分團 - Shinagawa Ward Air Defense Corps Ōi No.3 Branch 参加章 - Participation Badge reverse 昭和十一年七月 - July 1936

Badge of the same design for the same Osaka Air Defense Maneuvers but for the different Corps https://asiamedals.info/threads/1937-air-defense-maneuvers-ainichi-air-defense-corps-participation-commemorative-badge.25191/ Size 32 x 40 mm. Weight 16.3 g. Obverse 防空参加記念章 - Air Defense Maneuvers...

Obverse 功勞 - Merit 防空参加 - Air Defense Participation reverse 贈 - Gift 贈皇記二五九四年 -1934 惠美第二防護分團 - Emi 2nd Air Raid Defense Corps

Badge of similar design https://asiamedals.info/threads/1936-three-city-union-air-defense-maneuvers-participation-badge.25016/ Size 30 mm. Weight 12 g. Obverse 防空 - Air Defense reverse 昭和十一年七月 - July 1936 第五回防空演習参加章 - 5th Air Defense Maneuvers Participation Badge 業平分團 - Narihira Branch...

Obverse 杉並第十六分團 - Suginami Air Raid Defense Corps 参加章 - Participation Badge reverse 昭和十年 - 1935

Obverse 防空 - Air Defense

See also https://asiamedals.info/threads/1934-kansai-large-air-defense-maneuvers-aika-youth-league-participation-commemorative-badge.25033/ Obverse 記念 - Commemorative reverse 昭和九年七月 - July 1934 近畿防空演習 - Kansai [Region] Air Defense Maneuvers 汎愛防護分團 - Han-ai (Osaka) Air Raid Defense Corps...

Obverse 義勇奉公 - Loyalty and Courage [Serve for the Nation with Loyalty and Courage; Spirit of National Duty and Service] 第二分團 - 2nd Branch (most likely Nihonbashi Ward, Tokyo...

Badge with a similar design elements https://asiamedals.info/threads/nihonbashi-ward-air-raid-defense-corps-1936-united-air-defense-maneuvers-participation-badge.24808/ 1st variation. Obverse 忠君愛國 - Faithful Patriots (idiom) 第二分團 - 2nd Branch (most likely Nihonbashi Ward, Tokyo) reverse...

Badge with a similar design https://asiamedals.info/threads/1934-kinki-air-defense-maneuvers-kite-design-participation-sommemorative-badges.24118/ Obverse 参加章 - Participation Badge inside the emblem 集 for 集英 - Shūei reverse 昭和十二年度 - 1937 集英防護分團 - Shūei [gathering of talented...

Badge was converted into a watch fob. Reverse 昭和十二年度 - 1937 防空演習参加記念 - Air Defense Maneuvers Participation Commemorative Engraved 粉賓第二區防護組合 - 2nd Konahin Ward Air Raid Defense Union

Interesting Korea-related badge and watch fob. 1st type. Obverse 防空 - Air Defense in the center 功 - Merit reverse 京城府防護團 - Keijō Air Raid Defense Corps Keijō, or Gyeongseong, was an administrative district of Chōsen that corresponds to the present Seoul, the capital of South Korea...

Obverse 防空記念 - Air Defense Commemorative reverse 昭和十年度参加章 - 1935 Participation Badge 杉並區 - Suginami Ward 防護團 - Air Raid Defense Corps 第八分團 - 8th Branch

See also https://asiamedals.info/threads/1932-nami-ward-youth-league-military-training-badge.28621/ Obverse 並區 - Nami Ward 防護団 - Air Raid Defense Corps reverse 昭和七年 - 1932 軍教章 - Military Training Badge

Obverse 防空演習 - Air Defense Maneuvers 参加章 - Participation Badge reverse 昭和十一年九月 - September 1936 大阪市神路防護分團 - Osaka City Kamiji [Ward] Air Raid Defense Branch

Reverse 昭和拾二年度 - 1937 阪神防空演習参加章 - Hanshin Air Defense Maneuvers Badge 東成區防護團 - Higashinari Ward Air Raid Defense Team

Reverse 昭和十年七月 - July 1935 阪神防空演習 - Hanshin Air Defense Maneuvers 参加記念 - Participation Commemorative 天王寺第七防護分團 - Tennoji [Ward] Air Raid Defense Corps 7th Branch

Obverse 防空 - Air Defense reverse 神奈川縣防空學校 - Kanagawa Prefecture Air Defense School

Yodobashi Ward Air Raid Defense Corps badge of a similar design https://asiamedals.info/threads/1936-1937-air-defense-maneuvers-yodobashi-ward-air-raid-defense-corps-participation-commemorative-badge-_.28825/ Badge with a similar design elements...

Obverse 功 - Merit Tokyo emblem with superimposed army star. reverse 表彰 - Award 京橋区防護團 - Kyobashi Ward Air Raid Defense Corps 第一分團 - 1st Branch 昭和十四年四月 - April 1939 Original case. 表彰 - Award 京橋区防護團 - Kyobashi Ward Air Raid Defense Corps 第一分團 - 1st Branch