Regular Member Badge (predecessor of this type https://asiamedals.info/threads/regular-member-badges-of-marine-rescue-association.23395/)
It has approximate diameter 12.7 mm.
early membership badges
full memberbadge
imperial japan sea disaster rescue association
imperial marine rescue association badges
lifetimeregularmemberbadgeregularmemberbadge
帝国水難救済会員章
正會員假徽章
終身正會員假徽章