Obverse
功績 - Achievement
労 - Merit
reverse
無災害記録樹立功績章 - Merit Badge for Achievement of No Accident Record
山形労働基準局長 - Director of Yamagata Labor Standards Bureau
Marked 銀 - silver.
Original case.
功績章 - Achievement Badge
山形労働基準局長 - Director of Yamagata Labor Standards Bureau
Badge was manufactured by Ozawa /小澤/ workshop in Yamagata City. Workshop was established in 1929. In 1974 it was register as Ozawa Shoten Co., Ltd. /株式会社 小澤商店/ https://ozawa-co.wixsite.com/index