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
lifetime regularmemberbadgeregularmemberbadge
帝国水難救済会員章
正會員假徽章
終身正會員假徽章
Imperial period badges (1889-1949).
This type was introduced around early 1930s. Its predecessors https://asiamedals.info/threads/early-membership-badges-of-imperial-marine-rescue-association.23669/
Early badges (metal and hot enamel).
Size (approximately) 30 x 39 mm.
Reverse
正會員...
The badge has the same design as special member badge https://asiamedals.info/threads/special-member-badge.23257/
Only suspension has reverse color scheme and reverse insciptions are different.
Suspension of regular member badge.
Suspension of special member badge.
Early "heavy" badges...
dainippon air defense association
full memberbadge
great japan air defense association
japanese air defense badgeregularmemberbadge
大日本防空協会
大日本防空協会正会員章
大日本防空協会章
正会員章