4th Imperial Capital Air Defense Maneuvers Participation Commemorative Badge https://asiamedals.info/threads/shinagawa-ward-air-defense-corp-4th-imperial-capital-air-defense-maneuvers-participation-commemorative-badge.28095/
Height 42 mm.
Obverse
第三回帝都防空演習参加 - Imperial Capital (i.e. Tokyo)...
3rdtokyoairdefensemaneuversbadgeairdefenseairdefensemaneuversbadges
japanese airdefensebadge
japanese badge
shinagawa ward defense corps commemorative badge
品川区防護団第三回帝都防空演習参加記念章
防空演習参加記念章