Badge with similar design https://asiamedals.info/threads/1937-osaka-air-defense-maneuvers-commemorative-participation-badge.23920/
Obverse
Osaka City Emblem
田辺防護分團 - Tanabe Air Defense Corps
reverse
昭和十一年 - 1936
防空演習参加記念章 - Air Defense Maneuvers Participation Commemorative Badge...
Obverse
國威宣楊 - To Propagate National Prestige
第二分團 - 2nd Branch [of Air Raid Defense Corps]
reverse
日支事変之際 - On the Occasion of the China Incident
記念 - Commemorative
昭和十二年九月 - September 1937
関東防空演習 - Kanto [Region] Air Defense Maneuvers
日本橋区防護團 - Nihonbashi Ward Air Defense Corps...
1936 three city union airdefensemaneuversairdefense corp branch badgejapaneseairdefensebadgejapaneseairdefensemaneuversbadge
yotsuya ward air raid defense corps badge
三市聯合防空演習参加記念章
三市聯合防空演習四谷區防護團第一分團参加記念章
参加記念章
防空演習参加記念章
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...
Badge with the same design but from a different Corps https://asiamedals.info/threads/1934-kinki-air-defense-maneuvers-chudai-air-defense-corps-branch-participation-commemorative-badge.26509/
Obverse
Emblem of Kitaura Air Defense Corps Branch with 北 in the center 北浦 - Kitaura
防畿 - Defense...
1934 kinki airdefensemaneuversbadgeairdefense corps commemorative badgeairdefensemaneuversbadgejapaneseairdefensemaneuversbadge
kitaurae airdefense corps branch badge
toyo medal works
東洋徽章製作所
近畿防空演習北浦江防護分團参加記念章
近畿防空演習参加記念章
近畿防空演習記念章
防空演習参加記念章
Obverse
Tokyo City Emblem with superimposed Army Star
reverse
昭和十四年三月 - March, 1939
解團 - Solving Team
記念 - Commemorative
豊島區防護團 - Toyoshima Ward Air Raid Defense Corps
西巣鴨第四分團 - Nishisugamo No.4 Branch
airdefenseairdefensemaneuversbadgeair raid defense corps commemorative badgejapaneseairdefensemaneuversjapaneseairdefensemaneuversbadge
toyoshima ward air raid defense corps badge
豊島區防護團西巣鴨第四分團記念章