Photos courtesy of the owner.
Obverse
銃剣道 / Jūkendō / martial art using the bayonet literally "way of bayonet"
法大 -most likely abbreviation (for example it could be read as Hosei University)
greater japan association for promotion of jukendo
japanesebadgejapanesebayonetfightingbadge
jukendo badge
membership badge association of jukendo
大日本銃剣道振興會法大章
銃剣道法大章
1st type "plain reverse, numbered".
No.244 from 1942.
Photos courtesy of the owner.
Obverse
銃剣道 - Jūkendō
Reverse
above
銃剣道学徒指導者適任徽章 – Badge of Qualified Student Instructor
on the right
昭和十七年度 – 1942
on the left
第一四四号 - No. 144
144 is punched.
greater japan association for promotion of jukendo
japanesebadgejapanesebayonetfightingbadge
jukendo badge
jukendo qualified instructors badge
大日本銃剣道振興会
大日本銃剣道振興会適任徽章
大日本銃剣道振興會任徽章
銃剣道学徒指導者適任徽章
Dai Nippon Association for Promotion of Jukendo was established in 1941 and was dissolved in 1945.
After the war it was re-established in 1956 under the name All Japan Jukendo Federation.
https://ja.wikipedia.org/wiki/全日本銃剣道連盟
http://www.jukendo.info/jukendo-tankendo/jukendo
1st variant of...
greater japan association for promotion of jukendo
japanesebadgejapanesebayonetfightingbadge
membership badge association of jukendo
大日本銃剣道振興会
大日本銃剣道振興会会員章
大日本銃剣道振興會
大日本銃剣道振興會會員章