Reverse
功績章 - Meritorious Service Badge
福島縣 - Fukushima Prefecture
Marks.
純銀 - pure silver
+
キムラ - Kimura (for Kimura workshop/木材時計店 https://asiamedals.info/threads/badges-marks-and-labels-of-kimura-watch-shop-ki-ra.23228/)
Original case.
功績章 - Meritorious Service Badge
福島縣 - Fukushima Prefecture