Suspension
功績章 - Meritorious Service Badge
obverse
防空 - Air Defense
reverse
功績章 - Meritorious Service Badge
財團法人 - Foundation
大日本防空協會 - Great Japan Air Defense Association
群馬縣支部 - Gunma Prefecture Branch
Marked 純銀 - pure silver.
Suspension is also marked.
純銀 - pure silver.