Badge/obidome.
Size 24.6 mm.
Obverse
赤坂永川分團 - Akasaka Nagakawa /Tokyo/ Branch
reverse
防空演習参加勤勞記念章 - Land and Air Defense Maneuvers Participant Diligence Commemorative Badge
昭和十一年度 - 1936
Marked 大勝堂 - Taishō-dō for Taishodo Watch Shop in Tokyo.
Size 24.6 mm.
Obverse
赤坂永川分團 - Akasaka Nagakawa /Tokyo/ Branch
reverse
防空演習参加勤勞記念章 - Land and Air Defense Maneuvers Participant Diligence Commemorative Badge
昭和十一年度 - 1936
Marked 大勝堂 - Taishō-dō for Taishodo Watch Shop in Tokyo.