See also badge issued by Ibaraki Prefecture Keibodan Branch https://asiamedals.info/threads/1943-greater-japan-civil-defense-association-ibaraki-branch-imperial-review-commemorative-badge.27225/
Size 35 x 28 mm.
Reverse
御視閲記念 - Imperial Review Commemorative
茨城縣支部 - Ibaraki Branch...
1943 dainippon air defense association badge
1943年茨城県支部大日本防空協会御視閲記念章
dainippon air defense association badge
dainippon air defense association ibaraki branch
greater japan air defense association badge
大日本防空協会御視閲記念章
御視閲記念章
昭和十八年五月二十日茨城県支部大日本防空協会御視閲記念章