See also https://asiamedals.info/threads/193...orps-participation-commemorative-badge.25039/
Size 34.5 x 30.5 mm.
Thickness 2.6 mm.
Obverse
關東防空大演習記念 - Kanto Large Air Defense Maneuvers
参加章 - Participation Badge
reverse
皇紀二五九三年 - 1933
瀧野川區防護團 - Takinogawa Ward /Tokyo/ Air Defense Corps
Original case.
關東防空大演習参加章 - Kanto Large Air Defense Maneuvers Participation Badge
瀧野川區防護團 - Takinogawa Ward Air Defense Corps
Size 34.5 x 30.5 mm.
Thickness 2.6 mm.
Obverse
關東防空大演習記念 - Kanto Large Air Defense Maneuvers
参加章 - Participation Badge
reverse
皇紀二五九三年 - 1933
瀧野川區防護團 - Takinogawa Ward /Tokyo/ Air Defense Corps
Original case.
關東防空大演習参加章 - Kanto Large Air Defense Maneuvers Participation Badge
瀧野川區防護團 - Takinogawa Ward Air Defense Corps