Quality badge in silver.
Reverse reads
維持會員章 - Maintaining; Preserving [i.e. supporting] Member's Badge
戝團法人 奉仕會 - Foundation Service Association
The badge and suspension bear hallmarks "pure silver".
Original case.
badge made by shibasakibadgesmfg.co
badge made by shibasaki medal works
meiji jingu maintaining member's badge
meiji jingu service association badge
service association maintaining member's badge
shibasakibadgesmfg.coshibasaki medal works
奉仕会章
奉仕會章
戝団法人奉仕会章
戝団法人奉仕会維持会員章
戝團法人奉仕會章
戝團法人奉仕會維持會員章
柴崎徽章製作所
維持会員章
維持會員章