Originally Kenpeitai armband was introduced in November 1923 by Imperial Edict No. 477.
#2 Army Informational Notice No.4452 /陸普第四四五二號/ issued on July 3, 1942 that formalized armband size and way of attaching it.
Army Informational Notice No.4452 /陸普第四四五二號/ issued on July 3, 1942 that formalized armband size and way of attaching it.