1st type "pin fastening".
#2 Cased specimen. 男子役員徽章 - Men's Officer [Official; Stuff] Badge 大日本国防婦人會 - Greater Japan National Defense Women's Association Balsa variation of the case.
Cased specimen. 男子役員徽章 - Men's Officer [Official; Stuff] Badge 大日本国防婦人會 - Greater Japan National Defense Women's Association Balsa variation of the case.